iPad Pro (3gen) Mira opens / stuck in Landscape mode

GGM's icon

I'm trying to use the Mira app on a 3rd Gen iPad Pro in portrait orientation, but when I open the app, it rotates to landscape and stays there.

My Max patcher Mira.frame is set to portrait (but I've tried switching it back and forth - no luck)
My mira.frame aspect ratio is set to "Mira App" (but I've tried others - no luck)
I've tried locking the rotation on the iPad to portrait - no luck.

Even though the iPad rotation is locked to portrait, when I close the app, the Home Screen icons come back in Landscape mode, and then rotate to portrait.

Is there a way to tell Mira to accept other orientations?

Thanks
-Geoff