What happened?

There are almost no betterend entity that spawn, Example: there's no end fish/jelly fish in sulphur spring biome at all (like in screenshot). However, very few shadow walker spawned in shadow forest. There are also many enderman spawning everywhere.

TL;DR: End dimension is devoid of fauna.

BetterEnd

2.1.0

BCLib

2.1.0

Fabric API

0.62.0

Fabric Loader

0.14.9

Minecraft

1.19.1

Relevant log output

No response

Other Mods

No response

Update: End fish, Cubazoa and Dragonfly only spawns in Megalake biome, this explains why there are no fauna in other biomes. Shadow walker do spawn normally in dragon graveyard biome. End slime do occasionally spawn in every biome (but the variant doesn't match with the biome).

thought id add an addition to this report on behalf of 1.19.3 users as this bug is still prevalent, from my testing all is the same thought it seems end slime spawns are just as rare as other non Shadow People mobs. fish and cubazoa spawns are now just rare across the lakes within biomes though fish do tend to spawn more. i outright have not seen a dragonfly/silk moth spawn at all in my hours of testing