I'm currently trying to build my game on windows phone 8.1. The game runs fine under Windows Desktop, Android and Web plugin and uses the vanilla Unity GUI with panels, buttons, etc. However when I build for windows phone 8.1 my GUI buttons aren't working anymore. Regular touches on the screen that control the player character are still working as intended. I made a small simple example game (see attachment) that only has one button that changes a text control on the screen, this does not work for me on windows phone 8.1 as well but runs fine in the Unity editor. On windows phone 8 everything seems to work as intended. I'm Using Unity Unity 5.1.1f1 (64-bit) and I'm testing the game in the emulator so far, physical device is on its way. =) Can anybody please confirm that this doesn't work on windows phone 8.1? Or am I missing something here?