I believe that the fifth puzzle, Tapa Like Loop, has four solutions and I don't see any reason why any of the solutions could be incorrect. While I was solving, I went with my gut and entered the solution that seemed most likely, and I got my points. But there are two places where the loops may or may not cross (first column, 5/6th row and last row, 7/8th column), and I don't believe the rules prohibit the crossing in any way.

I don't know whether the organizers already know about this, or if I made a mistake somewhere, but if the puzzle really has multiple solutions, it would be better to give a disclaimer or something.