unable to load ai selction model

hello

i am using photoshop 27.7.0 PC

 since this morning i cannot make any ai based masks in photoshop camera raw i always have the same error message:

“unable to load ai slection model”

i have loads of ram available, over 55go, just resinstalled my 5070 graphic drivers same issue.

tried with many files, same trouble.

used lightroom classic and it is working, so problem seems to be within photoshop

i used the same computer 2 days ago, same photoshop version, and all was fine.