Yo mate, added a closeup of the “successful print” like I told our mate Silver118822 just above this, its not “perfect” but besides some hanging threads and brim melted on for eternity is a completed piece that looks okidoki from other angles (not Darwin award winning quality but now it feels like I’m gettin there 
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Yo Dirk,
Both printers has been running the exact precise same setup/settings.
It might be a good idea to do that reset if things not take a turn for the better soon! Thanks for reminding me, quite long circuitry between my ears at the moment so I appreciate any forward ideas!!!
Only own 0,4 nozzles, the four sets that came with the twin printers and I got 4 complete hotends and a couple of just nozzle thingies that I swap when I do maintenance. (Speaking of which now with alert pro help, do you guys swap your nozzles when you do the monthly maintenance? Actually I’m a cheapskate so I done it every second month 
)
I run the software that came on the printer, bambu slicer, bambu firmware, bambu handyjob and try to update as quick as they come! (The updates)
Yeah thats a good point, yep I formated the SDXC cards in the printers. Got a Sandisk Extreme Pro 256gb microSDXC cards, the goldy ones, one for each printer (ass in 2).
I have tried cross-swapping them butt the same result there. First runs like a champ, second is having some serious PMS issues…
I have two new cards in the shopping basket butt I have not pressed buy yet since my wallet is emptier than my head @ the moment 
Will do a revisit to this when I get that dough rollin in 
Yo mate,
Thanks for the thought Chris, butt nope, they are not tangled, it is just my Samsung S22 that turned warrantee limit old and lost all focusing in the camera the same day it turned 2yrs… (timebombs?!?)
But nice catch, couldve been the archnemesis villain bstrd!
I have tried printing from this side hanger,
also tried directly out of the Sunlu S2 filament dryer,
and two small thingiess with bearings that really sucked and is now waiting for next use in the garbage bin… (Prolly me doin something stupido, lol)
Sorry for the split replies, dunno how to gather quotes in same reply butt wanna be thorough and reply precisely how I proceeded and the current fruits of your valuable suggestions!
To sum it up,
I still have not got a normal/great print!
BUT I did get a print out when I followed some suggestions that included raising temps (Ended up with Bambu PetG settings and Bambu PLA and that combo spat out something cohesive…)
I noticed the hotends tip looking really weird, and you guys mentioned the Thermistor so you brought a highly nagging question stuck in my reptile brain… what if theres an air bubble in that thermistor hole? Or if this is in all the hotends I massaged to optimal freshness? Thus I got a Syringe and made dang sure that hole was creamed to the brim!!! Further I got that needle in and filled that clamp underneath and the edges of the Ceramic contraption…
ADDING THERMAL GREASE W SYRINGE IN HOTEND TO EXCLUDE AIR BUBBLES - check above
(Also I need some of them stickers on the hotend for my girlfriend)
You see the needlepoint of the syringe poking in to that thermistor cavity and it being thoroughly filled with thermal grease from the bottom and upwards excluding any trapped air bubbles (at least this is the whole reasoning behind the Syringe)
I even drilled the “thermistor” hole out since this set was the one that had the burned NEW silicondom and had the stuck thermistor that snapped off and top sensor stuck inside… Butt some drillin made sure we has a clean pipe!
(Really looks like this nozzle has been poking somewhere the eSun dont shine…)
I am resetting slicer and starting a known well experienced .3mf saved print with PetG as I am writing this sentence, we will see what the sentence will be very soooon!
Thanks for your patience and golden knowledge!!!
/Silverbullit the mad Swede (locally known as the village a-hole) 
UPDATE!
I have a finished PetG print!
It is not quite 100%, I’d say it is a print butt with some cosmetic flaws…
Trying to print this thing (2 part holder/hanger)
Backside
These prints usually comes out smoother than a politicians shave… butt ass you can see this is hmm leaves something to wish for…
Theres some oddities here and there…
Uploading: Bam_034.jpg…
Some more bad stuff… wuzz happening?
This filament usually just comes out supersmooth but you see theres even some weirdos going on at the first layers, layers that never has seen something like this previously?!?
How would you rate this mates?
(It is a print, which is going in the right direction, butt artefacts, holes, poor layer adhesion, pricks dots lines and I dunno what?!?)
But the big question is… what caused this to suddenly print!?!
Was the air bubble in thermistor cavity really a factor?
Did the new firmware and additional hard reboot fix something?!?
I’m at a loss here and I cannot wait to hear your thoughts mates!
While waiting for your feedback I’m gonna put on another print, I’ll do the next part of this two part thingeiy…
BRB
Yeah, it’s time for a back to basics with this. Time to restore factory defaults and try a very basic print like a benchy. The underextrusion is certainly present. It’s as if you are using a .4 nozzle, but have .2 nozzle selected in bambu studio. In addition, there is some layer delaminating going on. That could completely be related or it could be your filament. If this were me dealing with it on my setup I would start with a fresh roll of plain pla and start printing benchy until it failed using a default print profile in bambu studio.
The reason for the firmware reset is the “cosmic ray bit flip” (not really true, but a good excuse). As for checking the nozzle setting on the printer, is that it just may have been changed somehow (fat fingers, cosmic rays, who knows), just best to check.
As for hotend swapping. Heat it up, wipe it clean with a rag, blue shop towel, etc. Take it out an examine the tip to see if it is worn down from dragging across printed material. If it isn’t worn, put it back in. If it is, replace it.
Personally, I just get one complete hotend per nozzle size that I use: 0.2, 0.4, 0.6 that way it is easier to swap sizes, without disassembly and messing around with thermal paste, etc.
Now if I was running a business, I would keep at least 2 complete hotends per machine, and then just buy extra nozzles only. That way you have a working “quick” swap spare while you rebuild.
Also, as for the microSD card. Actually, take it out of the printer, and shove it in a PC and do a check disk, format (usually to FAT32 or NTFS if on a Windows system) to verify that there aren’t any obvious errors. Then put it in the printer and format it (it will take it too FAT if I remember correctly).
If all else fails, contact Bambu Lab Support. They have decent scripts they follow to help diagnose issues and determine if there is something wrong that may need warranty repair or just parts repair. Just please follow their instructions in order, even if you have already thought you have done it. You might have just missed one odd thing, somewhere. It also makes their life easier. (I say this because I’ve been on their side of the “phone” in past work history.)
P.S. Don’t “drill out” the nozzle diameter, even if you have the right size drill bit. You really need a reamer (getting one in such small diameters isn’t worth the expense). Just replace worn nozzles, cheaper.
If your nozzles are routinely changing filament types, “cold pulls” are the better way to clean them out, instead of flushing.
It looks as though the temps are not correct for PETG and some under extrusion seems present also, I would check the e-steps are correct as well, whenever I have worked on any extruder I have had to calibrate the e-steps and set the value again.
If you also changed the nozzle did you apply the thermal paste? if not the temps will not be correct.
You must have Fuzzy mode turned on? 
Chris, I think you hit it on some of his issues. With the Software part of the volume and steps per mm on the setting for the filament. I found that these settings were being changed on updates and some were set to zero after a certain number of layers!
I have had this off and on, always a battle after every update, almost like it is on purpose.
My recent issue has been part of what he originally showed on my P1Ps with the sudden random not printing parts of layers. Not a nozzle issue, it just does not print certain sections for several layers.
And on my X1c it has just gone crazy!!! It will not calibrate properly period! Totally random. Homes pretty good and consistent. But calibrate it and it is not just way off center to the left and forward of home. it beats the head to death in front and back and sides followed by scaping my brand new build plate!! Build plate was certainly well set in place and had been used for good prints already. And the scrapes were at an angle but not in the same line, but parallel!!! Of course support blew me off on this mess. The printers are in transit now, so I cant do anything now, and they closed my tickets! Nice of them! I have 2 others I will be using when I get back until these arrive. So I am a bit concerned. If anyone has ideas about these similar/related issues, would love to hear it!!!
Chris, I think you hit it on some of his issues. With the Software part of the volume and steps per mm on the setting for the filament. I found that these settings were being changed on updates and some were set to zero after a certain number of layers!
I have had this off and on, always a battle after every update, almost like it is on purpose.
My recent issue has been part of what he originally showed on my P1Ps with the sudden random not printing parts of layers. Not a nozzle issue, it just does not print certain sections for several layers.
And on my X1c it has just gone crazy!!! It will not calibrate properly period! Totally random. Homes pretty good and consistent. But calibrate it and it is not just way off center to the left and forward of home. it beats the head to death in front and back and sides followed by scaping my brand new build plate!! Build plate was certainly well set in place and had been used for good prints already. And the scrapes were at an angle but not in the same line, but parallel!!! Of course support blew me off on this mess. The printers are in transit now, so I cant do anything now, and they closed my tickets! Nice of them! I have 2 others I will be using when I get back until these arrive. So I am a bit concerned. If anyone has ideas about these similar/related issues, would love to hear it!!!
To be clear on my description. My P1Ps has the layer portion missing issue. My X1c has the bonkers self destruct issues with calibration and printing.
Some of the above pics I see as lack of support on overhangs as it tries to print out into open space over a distance the current filament settings cant handle (or to far). But some like the layer missing stuff, I have seen repeatedly as well. And that is not ordinary or explainable, other than either slicer or cloud slicer relative random screw ups! I also found that I can not use LAN only anymore as The slicer will not see the printer. Some of this I believe is hands outside of Bambu and is deliberate. I hate to say it, but I am also seeing this in parts availability in Au. and the states particularly. And Bambu must realize this will destroy their biz if it continues. I do not wish to see this, but who is going to spend money on more machines if this kind of thing continues or is not solved. I can spend my time and money on building my own stuff, if that’s the case. I am a Kickstarter supporter, I would hate to see this.
Mates, still wrestling with this. You could be on to something with that thermistor dud thing, I did change every part a handful of times but I’ve just done so again with another just arrived complete hotend assembly.
The swapped nozzle looks like this, check below
replaced, replaced, replaced, replaced, replaced nozzle…
So heres another couple weird things, wanted to see what happened if I reverted back to a non textured plate that worked flawlessly before. It literally had little to no grip at all…
The sibling X1CC does awesome with the same prints/buildplates/settings/slices
After complete hotend change it could not get back up on the Wifi, took a couple of reboots…
Warning message came up saying my nozzle came up as 0,00 in settings and the presets was 0,4 nozzle would I like to autocorrect. I pressed yes like a dummy hoping to see where that preset was but… sigh
This is a bonus weirdness that I should probably say N O T H I N G about
I sliced the current file in bambu studio, it came out as 432 point something grams and I clearly sliced the exact same object before reboot and it came out as 502 point something grams. This caught my attention, I rebooted PC and troublemaker printer and this time it came out as 486,04 grams ?!?
I dunno if this has to do with anything but this never happened before
Now after another nozzlechange (pre-assembled it starts like this…)
Which gives me some slight slivers of hope
Been on this since last post tearing my few remaining hairs on my mostly bald cork…
[Removed my bad reasons for no quick replies, sry mates!]
Gonna go down and buy a Sushi to go and get back massaging that rowdy X1CC in hopes of solving it randomly without knowing what I’m doing, I’ll rely on your knowledge mates!
And oh boy I take some small victories today, if I can get precious II to run like a champ again that be amazing!
Now I gonna try to read Scootles posts and try to understand everything through my exceptionally limited knowledge…
Thanks for posting mates!!!
May the force be with you mates,
/Silverbullit the confused X1CC owner… 