Try clicking on another player? I'm not entirely sure what is happening there. The dialogue for each level is only meant to be read once so I don't know if that would cause some sort of bug.
You're right! Maybe you can add the instruction to click the copies of the players to switch the player. I have read the comments on the game jam submission page mentioning switching the copies of the players but I only tried pressing random keys and did not try mouse button.
I reached the switching platform level and I died more than 10 times and still cannot get all the copies in the green light ball. Always gets one in and then the next one falls...😭
A lot harder than I expected, especially when the switching platform is pushing me away when I did not land on the center of the block in the last stage...