Hi everybody, I have this very weird issue at my spawn (which is not at 0,0 coordinates). There are quite many chunks there which turn into world holes after a while when the server was restarted. They are fine for the first... maybe 20 minutes(?) but then they turn into world holes. The holes seem to exist on the server because I can collide with blocks but they're not visible for clients (restarted, others reporting the same). When someone actually walk into it with shift-crouching onto it and then restarts his client (or anyone else enters it for the first time) then this one particular chunk is fixed. I am also able to fly over lots of them (or even all) and that fixes every chunk I was on for a short time. But this effect is only temporarily. It turns into world holes later on again (not sure if after restart or after another 20 minutes yet). Also entities (like item frames which I have there) are fine, I can see them but they're too dark Is there anything I can do to fix this? I've tried a rollback of the whole world to a date about which I was sure that the problem didn't exist. Any further help is much appreciated! Also I am running Spigot as a server software. If you need any other information, just ask for them.