Can you please move the location of Filter Config.xml on the server please to a more obvious location.
We installed Vault Server running under a domain user account, however it was not obvious we needed to apply special permissions to the current folder. When adding mapped AutoCAD attributes to properties, because the Vault Server user had no write permissions to this file, the attribute mapping was not saved. On the vault client there was no obvious errors of the problem, (The dialogue showed the property being added OK), but when returning to the dialogue the setting was not saved properly.