Buttons not working in AIR apps running on Chromebooks

When running an app developed using Adobe AIR for Android on a Chromebook, buttons randomly don't work. Sometimes when the app starts the buttons work but sometimes they don't. Sometimes the buttons work until app is minimized - when maximized again, buttons do not work. Full screen button on Chromebook may also cause the buttons to randomly stop/start working. I have tested various things: older and newest AIR SDK, different parameters in app regarding fullscreen, resize and maximisable, but results are either not successful or inconsistent. I have also tested AIR app published both using Adobe Flash Builder 4.7 (FLEX/AIR SDK) and Adobe Animate IDE (AIR SDK) with same results. I'm now testing on a Acer model N16Q14 (R751T Series) but the random results are the same also on other Chrome OS devices. I am also testing on latest Chrome OS version. Please note that the issue only occurs on Chromebooks - not on Android phones/tablets (or same app published to iOS).

Has anyone experienced the same issue?