Dear Mojang team,
if you stand under a vine like this(Video), you can't build anything.
Please watch the full 1min. video to understand it all.(compressed Video+Debug). If you want the full resolution here: https://workupload.com/start/SNggFQeZ
Please fix this.
With kind regards
SergieXD
Working as intended. When you are inside the hitbox of a block, you can't place blocks outside of it.