Thank you for your reply, Admin.
However, I just went to check every single Pokemon Center in Hoenn, and all the guards are still blocking the doors to the Transmat rooms. I also went back to the very end of New Mauville, but Wattson is completely missing (he is not there).
If possible, could you please completely reset this Transport Quest back to the very beginning for me? I would like to do the whole quest again from the start to make sure everything works properly.
Thank you for your patience and support!