HEY! I'm playing on 1.5.2 and I've got this problem.
Graphics on fast
ok but have you tried it without mods?
I'm talking about level saves
it happens too with de bed, if you punch on the pillow part it drops a bed. I think it's a bug, but the problem is with the hitbox
if it's on a server be sure the nether is actived
no, I havent. It was in the 1.3.2, but I couldn't put it in the afected versions.
it happens too with the water in the sea sometimes.
This is intended behaviur. That's what happens from 1.6 BETA to now.
No, only with the fisrt world
This happen fisrt time I load a world
what do you mean with the Development Console tab?