JavaFX Scene Builder bug

Hi. Sometimes I get bug in Scene builder, i can't select controls, add new one, grab and move them... I'm using Ubuntu 17 and IntelliJ 2017.2.3 (had same issue with 2017.2.1-2 was not using other versions ever).

Here is short video with a bug https://www.youtube.com/watch?v=QrKQpTjuVpQ&feature=youtu.be, u can see, that properties tab is not changing when i click on TableView or Button. I don't know why it happens but if I restart IntelliJ everything is OK.

I had this bug few times while was creating new scenes and adding elements to it...