The enter button of a controller often looses its functionality

I don’t know if this is also the case with controllers from other companies. However, I have the problem with the following hard- and software:

Controller: Carpe Iter CI Controller 1st generation
Carpe Iter app version 2.93 (13.11.2023)
Device: SAMSUNG Galaxy Note 20 Ultra 5G, Android 13, One UI 5.1

It seems to happen randomly (unfortunately so often that it is annoying), but after several left/right/up/down/enter operations when using the controller, the “Enter” button can lose its function and it is no longer possible to select a command with it (except for the long press to activate the right/left arrows to select the different DMD views). Instead of the “enter”, a long press on the “Zoom out” button is then required to activate a selected command (but not consistently)!

Then the only thing that helps is to quit DMD2 and restart it. Then it works perfectly again (at least for a while).

Remark: This problem does not appear in DMD1!