Android build freezes immediately when starting

When I try to start my project on my android phone it just freezes on the start activity before even seeing the “unity” screen. Works fine on standalone build and web player, and when starting in editor. There is no error message at all in the console and google search doesn’t give me much either, I have no idea what to do. Tried to change some settings but it happens always.

Unity version is, lowest API 9 (my android device has 2.3.6) and I have Facebook SDK 6.1.0 integrated. Could anything of this cause this or can you give me advice? :confused:

Fixed it, issue was a bug in Unity Upgrading to fixed it.