I originally posted this in the general support forum but it seems to be only a Windows error. See the original post here: https://forum.unity3d.com/threads/access-violation-on-standalone-build.488711/. The game crashes randomly roughly after 10 minutes. The prior build built on 5.6 was 100% stable. The new build is using the latest 2017.1 release and features the new runtime navmesh generation. I have since then also filed a bug report. When checking the crash dump it always fails on the same line in asm. I've wasted a few days on this can someone please help?