So I discovered a bug that some times when you join your server on 1.7.2 snapshot you start glitching out of the world and you wont stop even if you join and come back well I know how to fix it

1. Check to make sure your using the latest 1.7.2 snapshot

2. This is the most important one make sure you have updated the essentials all the way to the highest update if you don't the world will keep glitching till you update.

3. After that if it fails then you might have to talk to essentials or get a different system cause this worked for me.