Same here, have you found a solution?

There is a mod for that- Visible Astrocetus. i just found it so i don't know for sure if it works, but it is worth a shot

did the mod help? anyone tested it?

Astrocetus wild are only visible with the Genesis lunar buff, this buff is added when you log in to the server, die or fast travel. (DLC engrams also work that way)

引用自 LeGustaVinho：

Astrocetus wild are only visible with the Genesis lunar buff, this buff is added when you log in to the server, die or fast travel. (DLC engrams also work that way)

Wait how do we get the buff in ragnarok tho?

so I did fast travel (via bed), but still need to confirm if I can see them now.

Update: I made some fast travel (via bed), flew across the map and could not see any Astrocetus. Either none was available or a simple fast travel is not sufficient.

Same here. We have for 1 month a server with the mod and never see an astrocetus.

Did anyone figure out how to get the Lunar buff to work? Not working on my server

can't see them either. S+ Transmitter Scan confirms they exist and i keep flying around the coordinates.

the only way i found it to start over (new game) soo yeah there go your save if anyone just wanted to add the mods to their already started game it wont work ¯\_(ツ)_/¯

and yes even if u wipe all the dinos when they respawn u will still be able to see them

u can use the mods (Visible Astrocetus) it does the same thing soo dont have to delete everything