[MC-201558] Wither skeleton can't path-find under certain blocks

The bug

Certain blocks above wither skeletons prevents them from pathfinding to a target they can try to reach if different blocks are above them.

Check out this relatively short, unedited clip of me trying different blocks above them: https://youtu.be/2vEF5HfJOLA

Linked issues

duplicates

MC-101136 Wither skeleton afraid to leave the shadows

Comments

anthony cicinelli 2020-10-22T15:06:17Z

I can confirm for 1.16.4 pre-release 1

Avoma 2020-11-23T14:54:49Z

I can confirm for 20w46a.

j_p_smith 2023-10-27T03:15:23Z

See MC-101136; the wither skeletons' behaviour depends on whether they are considered to be in direct sunlight. To address the blocks used in your video: Lava, soul sand, farmland, dirt and enchantment tables all block sunlight from affecting mobs, while glass, trapdoors and chests do not.