Live III Back to Arrange arrow bug?

Can anyone tell me why I sometimes can't dismiss these arrows in the Arrange View? The manual says they're back to arrangement buttons to tell the Live III you don't want to play clips in the Matrix but use the recorded arrangement instead. But I've had it happen to me a few times now where I won't even be using clips at all (none ever recorded) and I see these arrows. Pressing them doesn't do anything, they stay on the screen even though the arrangement on those tracks is playing as intended.

Strangely, if I load a new project then reload the project I see them on they are still there. But if I power cycle the Live III and then reload the the project, they're no longer there. Just a weird bug in MPC 3.6, or am I doing some thing to inadvertently cause these to appear?

I am on a Live 2 with 3.6 +ProPack.
I have noticed this behaviour although my projects have some clips in the matrix - I have not tried to save a project without clips, nor have I drilled down into this to see if its a preference or settings thang.
Anyway my quick workaround is to go to the clip matrix and press Shift+Stop All. Then back on the Arrangement page the All tracks to Arrange screen button now gets rid of the arrow buttons. If you are on a Live 3 there might be a physically shorter way of doing this.

Thanks, I’ll try that next time I see the issue pop up.

That happens for all tracks without clips when you launch a row in clip matrix.

Notice that in MAIN the arrangement tab will show "(unused)" for such tracks.