I think I've read a few threads over recent years mentioning that video file names including special characters will cause the rendered video to not be saved to the destination folder.
Here is the most recent one: https://help.videoscribe.co/support/discussions/topics/11000034139
My request is:
1) for videoscribe to check the user's filename and disallow any filename choices that might cause the video to fail.
2) to fix whatever limitation prevents videos with certain filenames from being transferred successfully to the destination folder after rendering. (I believe videoscribe renders to a cache folder then copies or moves the finished file to the final destination folder.)
-Mike (videoscribe user)
Here is a link to another thread in which a fullstop character in the video name caused the same problem:
(The Tab key is also specifically mentioned in the above thread as a cause for this problem.)