Just checked. Attaching screenshots:
Step 1: loaded your save. The game steps back to the shop (since the save IS broken, the fix will only allow you to continue beyond this point. If the save wasn't affected this should not have been necessary)
Step 2: Check against "Disable" in Rollback side, since this will prevent rollback from working
Step 3: Exit the shop. This is the only way to restore the game's functionality with the fix
Step 4: Save the game after you have chosen one activity
Step 5: Load the game. The game will start working from the point you saved in step 4
Check against .rpy files in your "game" folder, since they will prevent the fix from working.
Can't do more than this, the fix works.