[tde-devels] Buttons in panels

Hi, I have a question for you more knowledgable. Since I installed (a self compiled) latest TDE few weeks ago, I observe very strange behavior of buttons in the panel. I have there many buttons and with most of them everything is fine. In fact it was fine with all of them for the past 20y. Since last upgrade if I click Signal or Teams-For-Linux buttons the applications do not start. Same applications start only from the console. How can I debug and where to look?

I attach screenshots of the two configurations.

thanks in advance