Despite setting render distance to 5 in server properties, already generated chunks in The End do not unload correctly and are activated forever until server restart. This is confirmed additionaly by item despawn rate - upon player death items despawn, despite there are no player in that chunks. Also, chunks can be seen from far away like there was render distance like 15 despite it is set to 5 in server properties. This of course also causes huge lags and TPS drop to the server, every time someone goes to The End, as visited chunks never deactivate properly until server restart. Screenshot attached - chunks can be seen from far away despite setting render distance to 5.