Not necessarily a bug, but still enough to point out. I noticed that several mining spots only accessible by purple mages are only 1 tile wide, which makes it impossible to summon another critter (such as a miner) into the spot. 

This is noteworthy as prior to the hiatus, many locations seemed to be edited to be at least 2x1 in order to accompany the change to Summon that no longer allowed critters to stack on top of each other.