Ships can eject players if said player is in Survival mode.

[WayneZhenLi]

Summary:
Players in survival mode will lag around and may be ejected from the craft when walking around in a moving craft. However, players in creative mode can usually walk around just fine.

How to reproduce:

1. Get two players on multiplayer mode.
2. Switch to creative mode.
3. Have one player pilot the craft and another player walk around.
4. Observe that no one gets ejected.
5. Switch to survival mode.
6. Have one player pilot the craft and another player walk around.
7. Observe the player walking around will lag around and will likely be ejected from the craft.

Note if you want to test this just by yourself you can use a Captain's chair, fly around, and the get out of the Captain's chair. If you are in survival mode you will often lag around and get ejected from the craft. If you are in creative mode you are usually fine.

[Sunspot0411]

this is an old issue with the old version of vs, are you sure you are using the most recent build?

[WayneZhenLi]

I'm using the latest build on curseforge? The file is called, ValkyrienSkies-1.12.2-1.0-alpha-1.jar?

[Sunspot0411]

there should not exist such a problem with my experience, however if you have this problem on your side you could try install gotta go fast mod, it should fix the issue. remember only use the 1.0 version of gotta go fast, 1.1 seems not work well

[WayneZhenLi]

Oh cool that worked thanks!