If the problem is just getting Fletcher onto the ship, I will just need to load the last Reaper's Coast save in the developer build of the game, teleport him to the ship and re-save. I'll check to make sure the act transition works, as well.
Unfortunately, it is not possible to teleport him to the ship in a later act, if he gets left behind in Reaper's Coast. It would be worth a shot if he was on the ship but didn't show up after the transition, but if he didn't move to the ship it is unlikely he would be in the next level to be able to teleport.
If you use mods which require Norbyte's Script Extender, that may cause an issue, since the developer build of the game also uses a custom dxgi.dll file in the install folder, and will not work with the script extender version. In that case, I may need to load the save with applicable mods disabled, which may or may not cause a problem when reloading the new save with the mods enabled (it depends on the mod whether there may be issues disabling it temporarily). FWIW I've done this a couple of times for a different problem, and the re-saves were fine loaded with the mods enabled again.
The localization doesn't matter.
