Are there differences to Test Mode and Play Mode?
Yes. 1. Contrary to the manual, you cannot go from one module to another while in test mode (i.e. when you try to go from overland to the test dungeon it won’t work!). The only way to truly test it is to play the module with a real test party. 2. You do not enter the module in test mode at one of the entry points, but rather at the spot where the yellow arrow is, no matter how it is set. You do enter the module from another module at the preset entry point, though. There may be more. As they are found, they’ll be added to the list. But, if something isn’t working, and you think it should be, try it in real (game play) mode.