I sprang out of bed early this morning with the realization that blocks and traps placed during a match would not be removed until the game was closed.  I sat down and got that fixed quickly and updated the files here on Itch.  With that crisis resolved, I went into adding the AI player for a single player mode.  I had expected it to take much longer than it did, so as well as the block and trap removal, I have also implemented the single player mode with today's updates.