Thumbnails for known graphic files not shown in explorer

[xo-vision]

Describe the bug
When I list graphic files in explorer outside of the mountain duck directories, thumbnails are shown. When I move those files to the cloud via mountain duck, the thumbnails only show general icons for that file format. Moving those files outside of the mountain duck cloud restores the thumbnail view.

Desktop (please complete the following information):
Windows 11 Pro - same behaviour on two different machines.

[dkocher]

I am unable to reproduce. A thumbnail preview is shown as long as Free up space is not selected for the file.