Printer has been working great until now.
I came back to a print job reporting
so I went to the printer to find it like this!
here’s a clip of the problem starting
and here’s the final homing movement that really sealed the fate
how screwed am I? 
Try not to touch the plate very often, and when you do wash it up. But I don’t think that is going to be too difficult to repair. New nozzle, and maybe a new heating assembly (thermistor, heating element and nozzle mount). At least that is my guess. You may get away with just a nozzle.
Do not panic, do not rush.
You may need to purchase parts, but the first thing to do, though, is to work out how bad things are; you cannot do that until you have removed the blob and dealt with any damage.
This is the specific guidance, but…
It lacks the devastation you see, so also look at this for the blob.
Also, how to clean the plate.
My concern is, how have you possibly printed enough to cause the lack of adhesion yourself? I hope you’re not manhandling the plates. If you are, I can’t imagine you would do so in the middle.
Ahh the dreaded blob of death. It’s recoverable as Malc said, don’t worry. As @just4memike alluded to, this is a problem that is caused by a dirty plate. Best practices are:
Do not touch your plate if possible, as finger oils can and will cause this exact issue.
Also be aware of what you’re printing with; If you just printed with a lot of PLA and now you’re going to print PETG, wash your plate because they don’t adhere to each other and prints will leave microplastics behind.
A proper wash should use a gentle detergent (dawn is the general recommendation) and a scrubbing sponge. Thoroughly wash the plate and then dry with a paper towel (not your kitchen towel, it needs to be lint-free), try to only handle the plate by the edges or by the grips where you’d remove it from the bed.
Don’t use Isopropyl alcohol, it can spread oil around and subtly make the problem worse. Don’t use acetone, it can damage the coating on the plates. Detergent, scrub sponge, and a couple paper towels are all you need.
Follow these general guidelines and you’ll have great adhesion
Sometimes you can just heat the nozzle up until the plastic softens and peel it off. Wipe it hard with dry paper towels afterwards to get the remaining plastic off. Dont burn yourself
I’ve had this happen to my X1C when I first got it a couple years ago and it bent my hotend, had to get a new one. Looks like a classic case of failed bed adhesion that’s escalated into disaster. Ideally should have been stopped by the AI monitoring but it probably didn’t spaghetti enough.
I just use the other side of the plate (so one side for PLA, the other for PETG).
That’s a nice idea. I think I’ll laser etch in “PLA” or “PETG” (outside of the print area) on each side to keep track of which is which.
how did u record live video and not only timelapse?
It does this by default as long as you have a USB installed unless you turn video off in settings
i only have timelapse
You have to put your USB drive in a PC to see the full videos. Maybe they will add remote access eventually, but for now, that’s what you have to do.
loool ok, i had 100go on the usb drive 
I think I had the same issue - I don’t have video, but there was clogs all up in there, and stick parts inside. When I tried to remove it, it seems like I broke the right hot end, as it throws errors, and there is a black wire loose from it.
I opened up a ticket, but my guess is this is going to take forever, and the repair is going to be frustrating.
What always fascinates me: Why such things are not recognised by the camera and the ‘AI’.
There’s a white print on the plate - and shortly afterwards,its gone.
There’s a big white block hanging from the nozzle.
Then the nozzle is crooked and about to fall out - the QR code on the front would also make it easy to recognise that something is wrong with it.
So many possibilities where something could be recognised. But nothing.
In the first two videos, the printer should actually make an emergency stop immediately. Surely it must be recognisable that the print is coming off the plate?
if (stuff_is_moving_on_Plate) {
doEmergencyStop();
}
@Dextera, I agree with you. The AI should actually be able to recognize something like this.
But machine learning is a complex topic and only as good as its training.
So, I have two suggestions for future solutions to such problems:
Monitor the symbols on the silicone socks for parallelism.
In this case, a clear error should have been detected.
Monitor the approach path to the cleaning position for excessive resistance (as is done when referencing the axes).
If such a large lump of filament has already formed on and around the hotend, you can measure the resistance on the Y-axis when moving into the cleaning position and react accordingly.
I think Bambu Lab will improve this, but the next unknown error is sure to come.
I know, I am a programmer in such areas - among others 
That’s why I still wonder today how, for example, spaghetti stringing is not better recognised on the X1C …
I had the exact thing happen with a small piece that let loose and stuck to the nozzle. It kept right on running and totally filled the area around the nozzle behind the silicone sock. I was able to melt the PLA away, but I think I took the life out of the wiring. I went to order a new heater and they are out of stock until july which is total BS on a consumable.
With all the sensors they have on the machine, I would think they could have something that would detect a build up under the heat sock.
UPDATE: Bambu responded to my issue after 2 days and are sending out a new RH heater. Cool!
I am more interested in the code behind “stuff_is_moving_on_Plate” function 