Collecting bugs of element series products

[Tom]

In the latest MA Player (October 2021), the buttons don't work.
I'm using an iPhone 7, iOS 15.0.2.
Source selection buttons do nothing.
The volume buttons (+/-) do nothing.
The volume slider does nothing.
There is no tactile feedback, no color change, and no change to the Element X front panel.
These functions work fine with the physical IR remote.