Watch Folder - empty after preview

[importance-peak]

Hello,

I have a problem with the Watch Folder:

1. I add a folder:
   

2. Generate preview:
   

3. Restart Cinema 4D

4. Folder empty
   

Does anybody have this problem? Is it a bug?

Thank you

[importance-peak]

I did a 2025.3.3 install and repeated the steps.

added a folder with HDRIs, generated previews

restarted 2025.3.3

Everything working as expected

so i think it s a bug introduced in 2026.x

[importance-peak]

"
Hello,
Thank you for reaching out to us and sorry for the issue your experienced.
Unfortunately, this is a known issue already reported to our development.
I’ve gathered all the information from this conversation and passed it along to our Engineering team, who will continue investigating the issue and prioritize it for a fix.
"