Still present in 1.18.2
1.16.100.mkv shows an intentional behavior while 1.17.11.mkv shows bugged behavior which is still in the game
[media][media]
As you can see the core problem is that while only one block is outlined on the first frame, two blocks are getting placed on the frame after. This does not happen on versions prior 1.16.210. Also this violates Jeb's rule "one block one action"
affects 1.17.41
still present in 1.17.40
still present in 1.17.34
very crucial bug for competitive community. hopefully it will be fixed soon
The function which controls the placing of blocks was heavily optimized in 1.16.221 so maybe this is a reason why. honestly i don't know anymore maybe it was intentional