When you hover over a bee nest in a tree (before you silk touch it), it doesn't show how many bees are in it until after you break it, it always shows zero.
Once you break it and place it again it correctly shows the number of bees inside.

Wait 1.21? @Hellster90

When you hover over a bee nest in a tree (before you silk touch it), it doesn't show how many bees are in it until after you break it, it always shows zero. Once you break it and place it again it correctly shows the number of bees inside.

That is expected behavior if you are on a server, and do not have a mod like Servux 0.3.0+ OR pca-protocol + masaGadget/Something installed.