I've only had this once so far, but it didn't recognise that I had solved this puzzle (one I created recently):
<Image removed because it is unneccessary now and I want to cut down on server load>
No amount of moving the blocks off and on their spots would make it detect.
*EDIT*
I did it again and the same thing occurred, after restarting it seems to work ok.
<Image removed because it is unneccessary now and I want to cut down on server load>
No amount of moving the blocks off and on their spots would make it detect.
*EDIT*
I did it again and the same thing occurred, after restarting it seems to work ok.