Cloud home hard drive name adding a dash then number after it

My Cloud drive now shows on Time Machine as CLOUDXXXXXX-3.local

I don’t know why it has from CLOUDXXXXXX(drive serial number) and added the -3.local It has changed 3 times now. e.g became -1, -2 now -3. Each time I have redo my time machine on mac.

Any thoughts

This sounds like the old macOS Sierra TimeMachine disk alias bug.
Have you checked macOS furums?