This is happening to bedrock realms also. I run a modded survival realm with a few add-ons. But one of the add-ons had the same manifest number as some random one and kept adding a ghost addon pack to the realm. I removed both and now my realm keeps crashing then rolling back every 20 minutes. It's very frustrating.
I ran multiple tests to make sure it wasnt just my hardware.
It was a Singleplayer world.
1.7.10, is that you?
CONFIRMED FOR ALL THE VERSIONS!
Tom Udding
That's because it was FIXED in 16w05b!
...Whoops... 🙂
That's called a "splash text", and that random rapidly changing text thing is actually one of them, and is supposed to happen. 😛
Any chance the world file got corrupted somehow? Never heard of it just disappearing like this.