Astronauts permanently fall on sports carriers

Astronauts cannot stand up again after falling on a moving vehicle, unlike on stationary land, and cannot stand up again after falling, regardless of the acceleration of this moving vehicle. This setting is obviously illogical, for example, if we fall on an airplane or train, as long as it is moving smoothly (with less acceleration), we can stand up again. In fact, in early versions, this issue did not exist until a game update occurred, which caused us to encounter difficulties in creating manned designs. Is this considered a vulnerability? If I really hope to be repaired.