Bambu Studio freezing when changing device and filament (Windows 11)

For the past few months, I’ve been having a problem with Bambu Studio. When I go to the Device tab and switch the printer, the whole program freezes for several seconds, often even over a minute. The same thing happens when I change the filament. Sending a print job also takes a very long time. On top of that, the program sometimes just crashes during slicing.

It started more or less when I upgraded from Windows 10 to Windows 11, but I don’t think it’s the system’s fault, because I checked on a laptop with Windows 11 and everything works fine there.

On my PC, I’ve already tried reinstalling the system, reinstalling Bambu Studio, updating all drivers, and checking the RAM. I can’t find the cause, and it’s extremely frustrating when working with multiple printers.

My PC (where the issue occurs):
Core i5-12400F, 32 GB RAM, GeForce RTX 4070

Laptop (where everything works fine):
Core i7-8750H, 16 GB RAM

Current Bambu Studio version: 2.5.0.66

I came across some information suggesting this might be related to a SPLIT LOCK issue with 11th gen+ CPUs, but that discussion was about Ubuntu.

Is there any solution to make Bambu Studio run smoothly on Windows without freezing?

Hi, there is this “known” issue which may be related to yours:

In the 2nd post on that there’s an alternate plugin version to try, with some instructions. Others seem to report success with it.

Personally I only use LAN “developer” mode and haven’t had any issues like that while testing with v2.5.0.66+.

HTH,
-Max

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Thank you very much for this response. Now Bambu Studio works like a dream :grinning_face_with_smiling_eyes:

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