i am having weird behaviour of windows office pre-viewers with office 2021 and visio 2021 which i recently installed replacing the previous 2013/2016 versions which are running out of support - this is on a desktop pc.
On a new laptop, i also installed these product versions.

What happens is that, in one shared SAMBA folder, in one of its subfolders VSDX files cannot be previewed but DOCX files can.

In different subfolders of the same samba share, docx files cannot be previewed but vsdx files can.

the error is always the same "this file cannot be previewed because of an error in the ({product}) previewer" - {product} is word or visio depending on what type of file it is

giving everyone full control file permissions, changing trust center settings, using windows 11 or windows 10 - no difference.
i have run repair on both office and visio but it did not help.
explorer jams and freezes when a file cannot be previewed

the desktop runs windows 10, the laptop windows 11, both 22h2

all files which cannot be previewed can be opened and edited by the corresponding office 2021 program.

Even after opening and saving new they cannot be previewed.

BUT on the older laptop with office professional pro 2013 version 15.0.4911.1000 64 bit and visio professional pro 2016 version 16.0.16026.20002, all vsdx and docx files in these folders can be previewed.

Any ideas?