Remote stopped working after a few updates

Good evening/morning community.

I have this weird issue that my Hama Media Center Remote () stopped working after a few updates.
What do I mean “stopped working”?

Well I can still use the mouse cursor and the numbers as well as the arrows. So basically in terms of a mouse and keyboard it still works. However the main media keys like
Play, Pause, Stop, Forward and Backward do not.

To be honest I don’t know if it has to do with me switching over to a MySQL database for my media, but frankly, that’d make no sense.

Has anything been changed lately (2016-2017) in regards to the button layout/mapping maybe?
Sadly in Kodi I can only configure an XBOX360 controller which I do not want to use as I have a remote.

Thank you for any tips and info you can spare.