I haven't run into this problem with mine. I'd try a hard reset, take every setting back to default and see what happens. If that fixes it you can start adding or changing settings one by one and see if one of them triggers your problem.

One weird thing I have noticed with my IBUS app is that it seeks to take a bit to boot and if you don't give it a few seconds to boot the lights I have programmed to function as DRLs don't come on. I have to swipe to the second screen then back and they come on. But, if I turn the ignition to the first position and give it a few seconds before turning it all the way to start the lights come on as they are supposed to. Strange.