Drive revealed, but no content visible

Running latest Cryptomator & Fuse software on a MacBook and storing three vaults in iCloud, one vault operates perfectly.

One other vault reveals the drive shows only one folder when there are many folders stored there. The third vault opens and shows its name but appears empty, no folders or files are seen.

Using my iMac, the three same vaults on iCloud can be accessed fully.

Can anyone suggest how I might fix these problems?