I am using forge 1.20.1 with connector for immserive portals. When the ship passes through the portal, it bugs the hell out, freezes, and goes invisible until f3+a. Ad astra's ship howevver, passes through the portals no problem and continues to space.
My modpack is pretty loaded yes. Also it started buggin the hell out. I will attach a video and my log. (I also have the higher world height mod)

log: https://mclo.gs/RwmFgvb
video: https://youtu.be/dGCKJkitB2I

also, when on the moon after that video, killing myself and diong /tp say they work, but dont do anything