Devendra Badgujar
Forum Moderator

Hello Enno Kampmann

One thing worth trying is to navigate to C:Program FilesSpaceClaim 2021 R2 and locate "thumbnailprovider.dll". Right click and go to Properties > Security . Click Edit, then select each group in the list and activate the Allow check box for Full Control. Repeat this for every group, then click Apply and OK. See if that can be possible.