First steps in Linux; PlatinGUI configuration problem;

Hi there SAPpeople.

I decided to give Linux a try and at beginning I've got a small problems with Platin

GUI.

When I give 'New' connection, window with connection cofiguration appears. I give Description, Connection Type but ...

... when I want to se System, Group/Server or Router list boxes are empty, and when I want to give some value into System field, then press enter - System field is cleared 😔 and still becomes empty. ..

Could You give me some tip how to configure my connection? There is an Expert mode in tab Advanced, but I'd like to do this in Standard mode 😉

I'd be thankful for tips. Greetings. P.