The OJ is a special server, so for this server we made the exception that the gold can be moved to any domain or server after OJ ends. If a player stops before the server end the gold can be only used on the domain it was bought.
So dont worry you did the right thing not transferring it! The RN team will upload the gold (also free gold) and then you can transfer it to any desired server.
You can only move your gold between powers of the same region. M301 and S201 are not from the same region
Normally this is right, for the OJ however we made the exception that it is possible.
Uploaded to where?
Ingame at transfer options - settings -> collect gold