Somehow my game got massively corrupted.

One of my champions has 2 swords.  Regular ones with I think 11 and 18 damage.  When I try to equip them they don't equip, but they do strange things instead.  The problem may be related to conquering an outpost and then trying to shop at it in the same turn.  After the bug occurred the game became completely unstable.  Basically unplayable.  Normally I never crash, but I can't finish this game because I crash over and over, probably due to the corruption.

When I equip one of these swords it creates one of the skulls with a candle in it that summons a burning wraith.  I can sell it and it stays in my inventory but I still gain the gold.  I can get infinite gold this way.  If I equip it again it creates a clone of the same item.  I have like 30 of these now.

The other sword when I equip it a leather armor is created out of thin air and automatically equipped.  If I try to equip it again immediately after, nothing happens.  If I equip my reinforced chain mail and then re-equip it will create another leather armor and equip that.  I was able to sell these and remove them from inventory, but I can still get infinite money this way too as long as I keep re-equipping my reinforced chain mail between attempts to equip the sword.

Neither sword can ever become equipped and I can't get rid of the corruption as far as I can tell by anything I can do.