This bug report is a parity issue with Java.
Summary:
Some blocks cannot accommodate big dripleaf.
This does not match the java version!
List:
Monster Spawner
Shulker Box
Trapdoor
Steps to reproduce:
Place the indicated blocks.
Try placed big dripleaf on them.
Observed results:
No big dripleaf can be placed on blocks.
Expected results:
Blocks will placed big dripleaf.
affects 1.17.0.54