confusion/problem with lute tablature rhythms

Hi --

I am trying in intabulate a piece for lute consort. I discovered a bit of an anomaly in terms of rhythm notation. I am attaching a file that illustrates the issue.

Config: Windows 10 / Musescore 3.3.3.8992 Revision 57d770e (latest release)

Any thoughts? Is this the intended behavior?

Thanks, Gary Hess