App does not toggle HS210 3-way switch as expected
I replaced one of my dumb 3 way switches with a HS210 smart 3-way switch.
Everything seems to work fine when I manually press either the HS210 or the other dumb 3-way.
However, there seems to be a problem when I try to use the app to change the light.
The first tap on the app toggles the light (off if on, on if off).
Tapping the app again does nothing but change the status in the app. The light remains as it was.
If I now tap the app again, the light toggles (on if off, off if on) as expected.
Again, tapping the app another time does nothing but change the status in the app.
Everything I have read indicates that a single HS210 should be able to do what I intend it to do.
So I am not sure how to fix this current behavior. Feedback and thoughts would be appreciated.