It seems to be stripping train station (and other) names. Im using the latest version and in space (not water)

can't replicate that myself, for me train station names are preserved. Are you sure that the blueprint contain the station names in the first place (when you create a BP ther's a checkbox to include train station names). Are you trying to place a water placble BP of a train station on top of a already build train station this does not apply settings like the name since the water placble version is tecnically a iddfent entity, but the name should still be preserved if you place the BP somewhere that's not already build.

I think what is happening is that if i blueprint a GoW station onto an existing station it does not replace it (and therefore does not update the name on the ground). So if the station exists it won't work. I don't think this would be a simple fix since you replace every item with a dummy item. This isn't a deal breaker for me, but maybe something that should be known?

Exactly, it's not really something I can fix, the same thing happens with things like wires that are connected and probably all other settings. I might add this to some kind of known issue thingy on the mod page eventually.

A possible work around is to convert it to a normal blueprint, place it to update the train station, and then convert it back

I do all or nothing with my train stations, That works.