Crashes when trying to leave Realms (SeOn Googgle Play Store)

"I am having major crashes every time I spend more than 15 minutes in my Microsoft Realm server. Sometimes the controls will disappear and the scream will continuously flicker repeatedly. This is happening while I'm using Straight vanilla Minecraft without any texture packs or resource packs added or loading it mine software. I am providing you with the screenshot of what it looks like when it crashes.*