[MC-136308] Wither skeleton does not move in 2.5 and 3 block tall areas

The bug

The wither skeletons can not move freely when having a ceiling at 3 blocks high.

Linked issues

duplicates 1

MC-111856 Wither skeletons unaggressive/don't walk while in 2.5/3 block tall space Open

Attachments

Comments 9

Uriel Salischiker 2018-08-22T16:59:12Z

Mobs see the slabs as a full block, so for them there is only 2 blocks free in all directions, meaning they wont go there as they dont fit

Ezekiel 2018-08-23T02:24:34Z

I've added a video demonstrating this. When on slabs with 3 blocks of clearance, or in any circumstance with 2.5 blocks of clearance, the wither skeleton cannot move. It can move with 3.5 blocks of clearance on slabs.

There are other issues related to this, such as the wither skeleton not being able to walk into daylight.

tryashtar 2018-08-23T02:28:02Z

Perhaps MC-134847?

Oval 2018-10-17T17:51:42Z

Confirmed for 1.13.2-pre1.

Oval 2018-10-22T00:43:04Z

Confirmed for 1.13.2-pre2.

Oval 2019-04-13T14:07:25Z

Adding the 2.5 to MC-111856, as these two tickets are basically the same.

Judit Horvath 2019-04-13T14:09:46Z

Isn't this a duplicate of MC-111856?

Oval 2019-04-13T14:14:19Z

Look at my comment above. Yes, this is a duplicate of MC-111856.

Judit Horvath 2019-04-13T14:15:17Z

Then why isn't it listed as a duplicate?