Strange Xray Glitch

My chunks were glitched so i tried to do F3 + A to reload the chunks...

I got a strange X-Ray glitch (see Screenshot), I tried to quit the world but it didn't go away. I Reloaded minecraft and after waiting 10 seconds the chunks were slowly loading.

1. Load a world in 14w29b
2. Reload the chunks with F3 + A
3. (Result)