Articulation not applied nor rendered in articulation lane

I’m playing around with articulations and at measure 3 in the image, the entire measure is staccato, in the articulation lane, Natural. I’m baffled. I saved, closed, reopened – still misbehaving.

Any help would be appreciated.

So I’ve whittled this down to a simple project using HSSE+HSO (Pro) playback template. The expression map clearly has Staccato mapped to Bb-1. It doesn’t have Staccatissimo defined but as is apparent in measure 4, the Base switch Staccato (Internal Staccatissimo) is triggered.

Attached is the simple project. I’ve spent far too long trying to figure this out.

where-did-staccato-go.dorico (823.6 KB)

Playback options>Timing>Maximum duration for staccato playback techniques (uncheck)

Thank you. Just in time as I don’t have much hair left to pull out.