Just did this with #TASK
using update windows thumbnail
Add files or folders to item scope and run task
Fixed my thumnails
I like what #Task does but it doesn't support slddrw files. I'm on SW2017 SP5 and the thumbnail previews keep turning black for some strange reason. Resaving it doesn't do anything. It only gets fixed if I save the file someplace else, then resave it back in the right place. Is anyone else having this problem? Any ideas of how to fix it?
For drawings, you can use the "activate sheet" tool and set it to show first sheet. Then #TASK would simply save each drawing with first sheet and I believe that should fix the thumbnail issue.