Glitch report, for some reason I am doing a twilight route and when I start the Jobim arc Emil enters a "phantom state" where he is treated as being absent from the party even thought you have him in his civilian form when you regain control at the start of Chapter 4. Once you switch to Annie you cannot return to Emil, and Emil will not be able to revert to his battle form if disguise was not you last set magic (except when you get hit by an enemy) before he leaves the party at the end of chapter 3. As a result this will completely lock your save file if you switch to Annie and save, since Emil is necessary to complete the first part of the deeper Aqueducts section. For some reason I can't attach the pics here but I can email you them for your investigation.