Update: I've managed to test it, and after a couple of additional fixes it should be fine now. Also fixed the same behaviour for the Arclite and King Layne.

Been a while since I last checked this sub specifically, thanks for the heads up. Supposedly the bug only occurs if you switch -and- transfer items, but I should have fixed the issue anyways - at least I hope so, I haven't had time to test it.

So it looks like that issue with the shuttle spawning inside the normal sub is still around, and it still causes the entire thing to flood, and then sink, after switching to it. So it's still unplayable in campaign.

Since the game has updated multiple times, and the issue is still there, I can only assume that it's something on your end.

Please fix it soon! The sub looks really cool to play, and kinda needs campaign support to work properly.

I see, thanks for the answer

So yeah that's an issue in the game itself, it happens when you buy a sub and carry over your items. Supposedly, the devs are fixing it in the next patch. If you want to fix it yourself you can use cheats, just try to reach the shuttle's navigation terminal and then teleport your sub away from it (you might need to play around with that and character teleport in order to dock it back into position).

When I bought and switched to this sub, the shuttle spawned inside, it wasnt on submarine. That shuttle was also attached by the upper hatch, not the lower one. The upper hatch where shuttle should be, lead to open sea. When I tried starting a game with this submarine and selected sandbox mode, everything was fine, shuttle spawned properly. So this issue only occurs when switching to it. Your sub looks great but I cant play in it.