Regarding the jumping highlight—do you have a gamepad or joystick connected? In the game, you can switch between responses using the keyboard arrows or other actions—it looks like you have some kind of constant "vertical axis input."
Maybe You have right. I have game pad connected by wireless dongle and sometimes I use mouse 3D. But this problem only persist in this game.
If you disable it, will the issue be resolved? I need to understand what the root cause is in order to try and fix it.
I disconnected this two devices, but problem still exist.
This seems to be some kind of engine bug. Thanks for the information—I’ll try to figure it out.