Hi Ton,
Thanks for your hints. I made a small test and found quite strange behavior of my XControl. I added one ring, boolean, and enum control to my XControl (see attachment) and added "value change" events inside the XControl. I added "one button dialog" VI to those events to recognize if event is fired. When I change value of ring or enum (items 1,3,4) sometimes pop-up shows up and sometimes not but when I change value of boolean it always fires a event.
So my Xcontrol and main VI fires event always only when I change boolean value. Do you have any suggestion how to proceed? At this moment I can't send whole code here 😞