Summary:

When you hover (snow layer) over the flowers and break the block under them, the plant will reproduce the sound of breakage and emit particles (and even drop), but visually remain in place.

After an attempt to interact, the block disappears.

Also works with the following plants:

• Grass
• Fern
• Nether sprouts

Steps to reproduce:

1. Place the flowers.
2. Aim the placed plants with a snow layer (on the block on which the plant stands).
3. Break the block under the plant.

Observed results:

Particles of breaking and sound are reproduced, as well as drop, but visually the plant remains in place.

With any interaction, the plant will disappear.

Expected results:

No phantom blocks should be created.

Video:

Minecraft 2021-09-05 10-41-38.mp4