I want to create my bee farm surrounded by glass blocks. I started with 6 beehives (1st batch). And it runs normally. But when i add another bee hives (2nd batch)t, he old bee hives (1st) aren't producing any more honey and bees won't get in to the bee hives. I tried to remove the old bee hives and add the 3rd batch bee hives (also 6). Then the 2nd batch bee hives have the same issues and doesnt produce any honey.

Is there any explanation? Max bee number or max bee hives number?