It just says that the printer is busy and doesnt want to change the material, and neither work again when clicking Resume
Help please, I have a lot of prints to do!
Version 01.02.03.00
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Agreed. Finding a lot of bugs that shouldnt be bugs. The change filament is the most irritating as it seems like it should be a simple process. It will unload but not load. I have to restart unit after performing unload in order to load again otherwise all I have is an option to retry with a busy message that goes no where, which totally negates the possibilty of multiple colors on the same print (without ams atleast). Also please fix and add functionality to camera and time-lapse options while your at it ASAP! Thanks
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Thatās exactly what is happening to me
This 100% what started happening to me this morning. My last succeful print was last night. I tried to insert pauses and change filament and got it to work once and when it did it has a gnarly layer shift. also I am getting weird noises and the printer seems to be slowing down. has either of you submitted help tickets? I have.
I have the same issue. very frustating-
Glad to see Iām not the only one. Just recently got my P1P and was trying a simple 2 color print. I set the pause location for the layer, re-sliced (just to make sure), and started the print. Everything appeared to go well and I received the pause notification when expected. I was then able to unload the first filament. Getting the second filament to load was a bit finicky but it seemed to work. After that though, things just kind of stopped.
I hit Resume in Studio and while the but seemed to work, the print head didnāt do anything and the nozzle temperature, which had now dropped and stabilized around 140C, also couldnāt be changed (I saw instructions saying that I needed to manually heat it back up, but it wonāt do it - I can enter a new value [e.g. 250C] and it just immediately reverts back).
Iāve tried manually pausing/resuming again, both from in Studio and the Handy app, with the same result. It just seems āstuckā and from what Iāve read here and elsewhere, this whole pause/resume workflow, particularly with a filament change, is flaky at best. Pretty disappointing as a new P1P owner.
Thanks. Yes, tried the play on the P1P console as well. Seems like something in the software workflow got āstuckā. The AMS just shipped so I should have a better āwork aroundā soon, except when wanting to mix TPU with some other material - a puzzle for another day 
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Ugh have it as wellā¦ loading after in print pauze does weird things (repeating) and to make things worse after you hit the play button to resume it lets the nozzle cool down first and then starts to do cold extrusion! Wasting a lot material by destroying my print.
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I mean, one of the major reasons for inserting a pause into the gcode in the first place is SPECIFICALLY to change filaments, or maybe insert some hardware you intend to imbed in the print. Truly, an obvious and very rookie oversight. The more I use my P1P and my X1C at workā¦ the more I regret not buying the MK4.
I think someone here gave the pro tip that itās only the touch screen that refuses control (which has to be a bug) but you CAN control the load/unload from Bambu Studio and/or Bambu Handy.
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It didnāt work for me from either the printer screen, PC BambuLab, or the phone app. I ended up pausing, cutting the filament, and dropping the right spool into the AMS slot, then resume.
changing filaments mid print ? may require a run out of filament sequence to change to a similar type filament (pla for pla) where the printer/studio will then ask you to load filament , usually on the same spool slot (ams) . external spool works in a similar way with a little more effort required by the user
best bet is cut the filament and let it run out like when you get a tangled roll
This is my sixth day with the printer and 3d printing overall, but I think I know the solution. I use Bambu Lab Studio to both unload and reload the filament. The last operation doesnāt go well. Probably, because it is continuously asking to resume. First of all - donāt resume, just click āXā on the dialog if it shows up. The next step is to click on the ext. spool small editing icon (on the right side).
After that click confirm in the dialog that should show up and you will be able to click on load. Resume the printing process after the loading is surely over.