It happens a lot in Unity 2017.2 and 2017.3.0p1. I wasted weeks trying to get rid of this random crashes, both in editor and Android builds. Basically, if you quickly click over UI elements that activate/deactivate others, or when you quit the game, you get an hard crash, both in editor and Android builds, with vague (or zero) information logged. A typical stack trace shows this (Android): or this (Editor): This kind of bug has been reported here, one year and half ago: https://issuetracker.unity3d.com/issues/disabling-ui-crashes-at-gameobject-isactive I also noticed an identical behavior related to activating an object with an Animator component. (another example with GameObject.SetActive and Animator can be found here: https://answers.unity.com/questions/825223/editor-crash-log-help-diagnosing.html) Other reports: https://forum.unity.com/threads/segv_maperr-in-android-build.436720/ https://groups.google.com/a/candlelightinteractive.com/forum/#!topic/developer-support/vOfbV6Uj1EA https://issuetracker.unity3d.com/is...s-as-child-crashes-in-ui-canvas-getrendermode Logs also often point out some Access violation reading location problem. Anyone else facing this issue? Please, fix it ASAP, it's impossible to ship a game that randomly crashes when user click on the UI.