All mobs should be able to recognise lava next to soul sand.

this bug has existed since the addition of soul sand.

to reproduce this issue:

-create a ring of soul sand around lava. it does not matter what size.

-spawn mobs on any block near the soul sand. (more mobs will increase the chance of one pathfinding over the soul sand)

some of them will just walk on the soul sand.

this is mainly an issue because of the recently added piglins. they spawn naturally on soul sand, and you can notice them dying around you.