It looks, that the directory browse information is not correct implemented. Some files do not get right information about files in a folder. I think filefindfirst is not fully running.
I had some programs which tries to save files inside of a vault. This programms are struggling with getting last file name in folder.
Example: I have a hardcopy/screenshot program which saves new screenshot with next free filenumber (HC0001.jpg, HC0002.jpg)
This is working outside of a vault but not inside. Every time the same filenumber is created.
For me it looks like the function to browse file system is week implemented?
You can try it with www.hardcopy.com program.
What to do?