Having aquaculture 2 with vivecraft installed makes the fishing line and bobber of the mods fishing rods go invisible, vanilla fishing rod is unaffected.
I have tested this in minecraft versions 1.20.1, 1.19.3 and 1.18.2 with latest mod and Forge versions. All have same result.
Problem occurs both on desktop and in vr.

Do you have Optifine installed by chance?

nope. only Aquaculture 2 and Vivecraft, nothing else. I'm always creating Profiles through Curseforge, don't know if there is a difference doing it manually.

Just looked into it a bit & looks like we unfortunately can't do anything about it on our end. @fayer3 (Creator of Vivecraft) have opened an issue out it on their own Github repo in 2023. So seems to be a known issue on their end.

Vivecraft/VivecraftMod#114

okay I see what's wrong, will at least fix the non vr rendering issue

hm, our thingy should only break in vr though, not non vr. I'll check that