I generated a world with the same seed in 1.14.4 and in 1.15.1 and I updated the first to 1.15.1 too.
In the updated world I can't find any bee nest even 10'000 blocks far, in the 1.15.1 one tree in 20 has the nest.
Same problem on my Realm Server: I tried to generate over 500 new chunks, but no bee nest spawned.
Confirmed in 1.15-pre2
I think that the bug MC-153241 means a different think than MC-166272 one:
In the first there is "Comparator is unable to detect the Lit/Unlit state of a Campfire.", that means that Comparator can't read Block States (and it is an intended behavior, since observer can read it).
In the second one there is "Comparator cannot read the inventory of a campfire", that means that Comparator can't read the Items[] NBT (and it is a confirmed feature of comparator).
All the inventories can be read by a comparator, even if they do not have a graphical interface like the jukebox.
So I think that in a big relase based on bug fixes, it should include this fix.
They added the statistic `minecraft.custom:minecraft.interact_with_campfire` that doesn't have a GUI, but there isn't still the anvil one...
Bad inconsistance...
Frosted ice need at least 2 near frosted ices to live, but when you place it with setblock it doesn't update.
I think that it isn't a bug: it works as intended.
I think that it should be faster mine a piston with pickaxe than with the hand, but without removing the hand mining feature.
Which is the error message?
Confirmed in 1.14-pre4
There is this bug in 1.14s snapshots too
Demonstration video
https://i.gyazo.com/6b6fd1ec394dcc0341cdd2eb5c8a280b.mp4
Confirmed for 17w50a
The problem is only in the command-side: if you manually change the gamerule-value (NBTexplorer, MCEdit etc.), the functionality will apply.
If you change the worlborder from the nether with the command
/execute in minecraft:overworld run worldborder set 10
It works fine