Originally Posted by mclem
I've got one bug I encountered which inadvertently gave me too much help with a puzzle, and another which seemed to suggest I'd skipped a puzzle; don't know if I actually had, or there was no puzzle there.
First one certainly sounds like a bug.
As for the second; way to explain what I did. I didn't actually knew that connection, it would just make sense to add the 3 blocks to the 3 empty spaces on the protection "disk", messing it up like adding some random gibberish in a formula.