Bug: Had a ring with +1 skill slots, Took it off and lost TWO skill slots, Permanently?

OK, I had 11 skill slots on my Infernalist, not counting the free skill I got from my weapon, and was wearing an "unset ring" that gave me a skill slot where I had a skill gem slotted. Everything was working fine until...

I took the ring off. I had taken out one skill gem already, and the slot disappeared, but one of my OTHER skills was disabled. Thinking this weird, I took that Gem out of its slot and that slot ALSO disappeared, leaving me with two fewer slots than I had with the ring.

To try to fix this, I unslotted ALL of my skill gems and restarted the game, but I STILL am down two skill gem slots. I can't re-equip the skills I had before I ever wore that ring. Is this character now permanently crippled down to only 9 slottable skill gems? Or did I somehow manage to slot more gems than I was supposed to in the first place?