Application Pet Peeve. When you press the cancel button and it crashes said Application. If an action is not stable enough to cancel. Don't put a cancel button there! I'm looking at you Intellij! @jetbrains
Could you please report issue on YouTrack: http://youtrack.jetbrains.com/issues/IDEA attaching logs folder zipped (https://intellij-support.jetbrains.com/hc/en-us/articles/207241085-Locating-IDE-log-files …) and crashdumps?