A hacky fix, primarily for Vaporeon Character, but should work with any mod that did not update to Character mod helper 2.0.6 and calls check_my_prototypes before data-final-fixes.
This mod works by capturing the calls to check_my_prototypes, storing them until data-final-fixes stage and calling them then. I can't guarantee it will work with everything, but it works for me with 5 other character mods