Have you adjusted the code for the workshop?? If you have make sure your objects 1-7 are the "character Objects" you can steal them from just about any location. You can delete the arbitraries after you steal them but keep the startup/load. Also, If you've kept in alot of old code you may be "freezing" because It's looking for Playable Character 2, which you probalby don't have since it sounds like your entering this location directly after Crono's house. So I would clear out the code minus the character loading code.....maybe throw some music into object00.
You don't have to add a new exit
--jp