I think the plate recognition throws off the Z offset when its missing. I have had the same issue anytime the plate doesn’t recognize (no matter what plate). even though it bed levels right after it doesn’t detect, it still always prints high and doesn’t stick. i’m talking like its basically dropping the filament on the plate. when a plate is detected there is never an issue.
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I can confirm that the failed plate recognition is the source of my issues. I tried slicing with different plates, but the print was always unable to stick.
Printing out cool plate QR-Codes and gluing them on fixes the recognition. I guess the original code is too low in contrast. As you can see in the pictures, the position of the code is also misaligned on one side.
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I upgraded the firmware to the latest, and it fixed build plate position detection not working.
I am on the latests firmware and have tried to make my own QR codes, as suggested by other in this thread.
Only one out of 5 times the X1 detect the build plate. 
Has anyone made a bug report about this or are we only a few unlucky people, that has to live with this problem ?
I have gone back to the Smooth PEI Plate that always works.
Same issue with the latest Studio and X1C software versions. Submitted a ticket to Bambu.
Of note matching the position of the QR code on the SuperTack plate to the old cool plate, the positions align and the symbols match. Which suggests that the contrast of the SuperTack QR code is not sufficient for the camera to detect the code.
While I can turn off detection or print my own code, a Bambu plate should just work…
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I used the link above to download the QR Code for the Super Tacky plate and printed out 2 of them on my Brother P-Touch label maker. As stated above, on one side the new QR goes right on top of the existing “dim” one. However, on the other side, it must be moved to the left a little.
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Mines detecting one one side, but not the other.
Interesting observation, thanks. I wonder if there would be any practical benefit to making a warranty claim to get them replaced, it’s a major hassle dealing with support and I don’t really mind printing labels. The sucky part is I bought several dozen.
They sold me a bunch of filament with mismatched RFID tags last year and that was a big deal to me. When I said I wanted them replaced they got all hissy. “You can just set the filament type manually.” “I know I CAN, but I’m not going to.” I did get the refund, so I suspect it would be possible on the plates also. But meh, who cares about sticking on a label. Except it is a lot of labels. Hmm.
I received a response to the ticket submitted to Bambu overnight. In summary it said that a software update is pending release, disable plate detection until the update is released.
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I hope this is the issue, since this is something they should be able to fix with a software update, or worst case shipping plate stickers. Right now I’ve tried printing twice (manually selecting the plate), and it has failed. I feel like I’m back to tramming hell with my Ender 3, not the X1C experience I’ve had thus far.
Certainly needed some more quality testing before releasing this plate.
I also have this issue with my X1C…. What a embarrassment and lack of QC
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Same here. What an embarrassing series of letdowns from Bambu these past few weeks. Still waiting on six rolls of filament to ship, actually have ONE thing arrive - this new plate - and then I find out they didn’t bother to line up the QR codes and every print I start on my X1C with it prints in midair.
I know this is just a bandaid but they have the stickers on Aliexpress pretty cheap. Just make sure you select “cool plate”.
This worked for me. Using the old cool plate code printed and glued just to the side.
Any update? Do we know when the software update is supposed to be released?
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I have the same issue, Is this failure known by Bambulab as you know? And when will it be solved? Can someone from Bambulab respond here please? This is really annoying
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I don’t think we have soon a solution. 
Because when you go in the bambulab shop and check for this plate, there is a message like this:
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That’s quite annoying.
Just tried my Supertack plates for the first time and got the same issue. I haven’t updated firmware for a while - so will try that first.
I do fairly frequently swap plate types between cool and textured - so really want the detection to work.
Will try the sticker option next if firmware update doesn’t work.
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Update - went to the latest firmware on both printers - and so far 100% success with detecting tacky plate.
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@Ukdavewood, what firmware version did you upgrade to, and which printers were affected?
I’m still waiting for a fix, and no update is available.