Objects look like other objects

Objects (such as tree bark) will look like other objects ( such as TNT). Or a mushroom may look like power rail. It's very random, but happens during every game play. Sometimes it starts right when the map loads. Other times you can play for 30 minutes before it happens. It happens on all maps and servers. The only way to temporarily fix is to shut the app down and load back up. I do not have a SS at the moment as I'm not on the actual device the problem occurs.