RemcoW

Sapplings growing is also not detected. See https://bugs.mojang.com/browse/MC-131014

Bug has been open for half a year now, is it possible to get a progress report or escalate the priority of fixing this?

@KarmaKix Realm owner could try switching the active world and then swap back again. See https://help.mojang.com/customer/portal/articles/2469683#slot

@Leigh has your friend tried to activate a different world (from the realms settings), and then switch back?

Yesterday me and everyone else on my Realms had issues somewhat similar to this. I resolved it by switching the active world to a different one, and then switching back again.

Issue has been resolved: My own aquarium was inside the spawn chunk and hit the mob cap.

@[Mod] Odysseius I downloaded my Realm save and compressed it, but its 600MB. File limit is 10MB. 

Not saying fish despawning is wrong, but shouldnt new ones spawn?

For 2 days, we have not seen a single fish. I went with a boat through the ocean for about 7500 blocks and then back again, cleared monuments etc unde rwater, not a single fish anywhere. 

Then are they not supposed to respawn? I highly doubt that they went through the effort of creating all these types of fish only to have them despawn and then not respawn again.

@[Mod] Neko You marked this issue as resolved due to a duplicate, but mention a duplicate from snapshot 7 with a different issue. There are no fish or dolphins in any of the oceans in my world.

Please reopen this issue.