Hello Mojang team and anyone who is reading this, the day I am reporting this bug I found out that there is something wrong with dark oak tree generation. As you can see on image grass generated below the tree causing it to flout and leave dirt blocks below it. I hope you can fix it and respond as soon as possible.
MC-210407
Dark oak tree generating issue
Resolved
Duplicate
0
MarkoMilenkovic
(Unassigned)
Unconfirmed
(Unassigned)
1.16.4
Retrieved
This appears to be a duplicate of MC-125483, which hasn't yet been resolved. It would be greatly appreciated, If you provided the seed and coordinates of this issue, and comment it on the parent ticket (MC-125483). Additionally, If you have any additional information to provide regarding this issue, feel free to comment on the provided ticket. If you feel that this issue is affecting you, feel free to vote for the duplicated ticket, to give Mojang a basic idea of how many people are impacted by the problem. Just to further inform you, this will not determine how quickly the bug gets handled or fixed.