Hi I am working on a school project with a group and since we don't have a lot of time, we use cubes with box colliders for basically everything. And now when I've been playing a bit I noticed that sometimes the box colliders just stop working. The player can walk straight through them but raycasts seem to detect that they are there. The collider component is not set to trigger and is enabled. The worst part is that it is completely random and we can not foresee what block it will target next and we can't see if a block has been targeted unless we walk into it. We've never seen anything like this before until we updated to Unity 5.3.5. And since we updated to Unity 5.3.5 the day we began with the project we're not sure if it is a bug or something is wrong with the game. I am currently taking it up to myself to test it in Unity 5.4 beta 18 to see if the problem is there. Since I need to play the level over and over again it will take some time. But in the meantime, I would like to ask, has anyone else experienced this? Is this a Unity bug or something wrong with our game?