See this post started in Dec 2024 regarding this STILL UNADDRESSED issue:
Every. Single. Time. I download a model from Makerworld it opens my Bambu Studio and requests to update filaments with a new TPU profile. If I accept then it immediately deletes ALL my installed and connected printer profiles and also REMOVES BAMBU PRINTERS from the setup options. Yes, the setup wizard opens and requests you to select printers and literally zero Bambu printers are listed. The last time I had to fix this in March I had to delete and reinstall from an older verion of BS I had on hand. And I have had to MANUALLY REFUSE this TPU profile update for every model since then.
Today I was in a rush and accidentally accepted the TPU profile update and look at that, once again all my printers deleted and no Bambu printers even selectable in setup.
I have searched all over this forum and the net and I can’t find anywhere you even acknowledge this problem, let alone provided a fix.