Do System Image Backups Include Vaults?

Hello,

I hope it is okay to post in this old topic, but I have the same problems as @Blue_Sky before.
Backup software (Veeam, Macrium, AOMEI) is unable to back up my vault.
Even when I use WinFSP (local drive) and a mount point in a folder, the software tells me, the file system was not recognized (Veeam) or the mount point is untrustworthy (Macrium).

I read, there could be problems with admin rights, but I thought, I could bypass this, using a folder as mounting point?

SyncBackSE as non elevated software is able to look into the folders.

Do you have an idea, what is wrong with my settings?
I am using the latest WinFSP (from their website) and latest cryptomator on Windows 11.

Thank you very much.

Edit: so it is the same question, posted here:

How to fix this now?