duplicate/ghost rehearsal markers?

Hi folks!

Maybe this is a training issue about a new feature? But either way, I've never seen this before.

Consider this sample score:

display issues.mscz

See those extra rehearsal markers that are sometimes in gray and are duplicated on other instruments in the same system? I only added it in one place, and only want it at the top, of course. I see that the Tempo indicator is showing the same behavior.

I tried removing and adding fresh, and it comes back.

I checked Properties and don't see anything to enable or disable this ghost copy.

Thoughts? Is this a bug? Workaround?

Thanks!

OS: macOS 15.4, Arch.: arm64, MuseScore Studio version (64-bit): 4.5.1-250800846, revision: 603eca8