I did try out the newest update for Joiplay (v1.01.701 from Play Store) which doesn't work for me but I have never seen this before. Mine just crash after a few seconds. I assumed that the update you mentioned meant to be the Joiplay from Play Store.
Viewing post in Way to fix game frozen bug with 0.19 update for Android11
Please make sure you downloaded the Renpy plugin from the link too. It could be the case that you accidentally only updated the plugin or downloaded different versions of the plugin that couldn't compatible with your current version of Joiplay. (I managed to run into the same problem as you by update the plugin from Play Store only to see if my guess was correct.)