Telekom Smart Home Schalter and AVM Binding

I have OpenHAB 2.5.12 and FRITZ!OS: 07.25. I have 3 Telekom Smart Home Switches connected to my Frit!Box. Before the update I had a 2 Button functionality. Now there are 2 Buttons per switch in my things at PaperUI but only one of the Buttons works with openHAB.
That means only the press of one of these Buttons works and is in the log file. I think it is a bug from AVM ?!
Has anybody the same problem?

Hi Georg,

I am trying to help you. Can you create a TRACE log? To enable TRACE logging do the following steps:

You maybe want to send it via PM to me to avoid leaking sensitive data.