"Files in use" preventing clearing out Trash

Hello all,
Had a workflow setup sometime ago, that was automatically copying/sorting/renaming my Scrivener backup folders over to my Secondary backup disk.
All worked well for several months, and then something strange happened, and things stopped working - without my having changed anything (AFAIK). Regardless - since my reasons for having set the workflow up in the 1st place had changed - I initially paused, and then deleted/removed the workflows.
Part of the fall-out from what went wrong, saw a bunch of nested folders created inside nested folders.
I trashed these - they're still sitting in my Trash.
Each time I empty the Trash - it removes everything else (thankfully) - but when it comes to those subfolders, an OSX message pops up, saying that they cannot be deleted, as they are still in use - presumably by Hazel?
Any suggestions? Do I need to clean a cache(?) somewhere, or such-like? Delete some file, that's somewhere in the background? Any suggestions would be appreciated!
Had a workflow setup sometime ago, that was automatically copying/sorting/renaming my Scrivener backup folders over to my Secondary backup disk.
All worked well for several months, and then something strange happened, and things stopped working - without my having changed anything (AFAIK). Regardless - since my reasons for having set the workflow up in the 1st place had changed - I initially paused, and then deleted/removed the workflows.
Part of the fall-out from what went wrong, saw a bunch of nested folders created inside nested folders.
I trashed these - they're still sitting in my Trash.
Each time I empty the Trash - it removes everything else (thankfully) - but when it comes to those subfolders, an OSX message pops up, saying that they cannot be deleted, as they are still in use - presumably by Hazel?
Any suggestions? Do I need to clean a cache(?) somewhere, or such-like? Delete some file, that's somewhere in the background? Any suggestions would be appreciated!