Like it says in the title, my GUI doesn't appear. I placed a recycler on an MV line without thinking, there was an explosion because of the overload, and my game just plain freaked out. When I hit escape, went into my inventory, or opend any other menu, the buttons/inventory/NEI/etc didn't appear. I have tried force updating my pack to fix the issue, but nothing has helped. I have also completely deleted the installation folder to see if that would help, and it didn't. Strangely enough, it only affects me on a server, which is just bizarre.
EDIT: Turns out after deleting my player.dat everything fixed. That's one of the strangest glitches i've ever seen.
EDIT: Turns out after deleting my player.dat everything fixed. That's one of the strangest glitches i've ever seen.