[MC-79735] Armor Stand passengers rotation displays incorrectly

When I used the command

/entitydata @e[type=armor_stand,c=1] {Rotation:[180f]}

on a stand riding another stand the entity rotates, but displays incorrectly. In F3+B is is shown facing 180 degrees, but the actual stand is not.

To reproduce:

Run this command:

/summon armor_stand ~ ~1 ~ {Passengers:[{id:"armor_stand",CustomName:"\"TestStand\"",CustomNameVisible:1}]}

Then this command:

/data merge entity @e[name=TestStand,limit=1] {Rotation:[180f]}

Related issues

relates to

MC-1207 Head rotates in the wrong direction while riding

MC-110008 Mob rotation bugged while riding another mob

MC-166132 The tp command will not accurately face armor stands

Attachments

Comments

migrated 2015-04-19T17:01:37Z

[media]

marcono1234 2015-07-02T16:44:40Z

Confirmed for

1.8.7 Just the second after breaking it, you see it rotated correctly for a moment please use {code} in front and behind commands so they have the proper formatting.

Something strange: It seems to be only visually, the NBT data says that it has a rotation of 90f however when performing the /entitydata command multiple times it won't give the error that nothing changed

migrated 2015-07-18T14:19:27Z

Likely caused by MC-1207

SunCat 2016-03-07T20:57:15Z

Confirmed for 1.9

migrated 2016-03-07T21:14:51Z

is this the same as MC-69613? I'm not quite sure

marcono1234 2016-09-18T23:17:09Z

Relates to or caused by MC-65528

bemoty 2017-08-16T23:44:59Z

Can confirm for MC 1.12.1.

migrated 2018-05-19T20:27:53Z

Happens in 18w20c too.

migrated 2018-09-20T05:00:04Z

Confirmed for 1.13.1.

Updated commands (1.13+): /summon armor_stand ~ ~1 ~ {Passengers:[{id:"armor_stand",CustomName:"\"TestStand\"",CustomNameVisible:1}]}
/data merge entity @e[name=TestStand,limit=1] {Rotation:[180f]}

KirbAvion 2019-04-24T01:17:42Z

Confirmed for 1.14

KirbAvion 2019-05-14T04:16:51Z

And for 1.14.1.

migrated 2019-06-18T11:20:19Z

Confirmed for 1.14.2

migrated 2019-06-20T07:23:24Z

If you set the motion of the armor stand in the same tick as the rotation, this bug is 100% reproducible every time:

execute store result entity @e[name=standEntity,limit=1] Rotation[0] float 0.001 run data get entity @p Rotation[0] 1000
execute store result entity @e[name=standEntity,limit=1] Rotation[1] float 0.001 run data get entity @p Rotation[1] 1000
execute store result entity @e[name=standEntity,limit=1] Motion[0] double 0.001 run data get entity @s Motion[0] 1000
execute store result entity @e[name=standEntity,limit=1] Motion[1] double 0.001 run data get entity @s Motion[1] 1000
execute store result entity @e[name=standEntity,limit=1] Motion[2] double 0.001 run data get entity @s Motion[2] 1000

If you execute this function as a moving entity, the armor stand will copy its velocity but will not visually update its own rotation. If you display hitboxes, the blue line is pointing in the correct direction.

migrated 2019-07-19T23:21:26Z

confirmed in 1.14.4. For me it seems to rotate twice in a row just fine (rotating 90 degrees at a time), the third time the visual issue occurs, then it repeats.

onnowhere 2019-12-03T22:38:38Z

Confirmed 1.15 pre-4. Might want to change the title to indicate it only happens with passengers.

migrated 2020-05-21T21:06:49Z

Confirmed in 20w21a. Relates to MC-110008

Avoma 2021-01-23T11:53:29Z

Can confirm in 21w03a.

Avoma 2021-02-06T15:40:22Z

Can confirm in 21w05b.

Avoma 2021-03-03T14:54:25Z

Can confirm in 1.16.5 and 21w08b.

Avoma 2021-03-29T14:12:53Z

Can confirm in 21w11a.

Avoma 2022-10-24T13:57:58Z

Can confirm in 1.19.2 and 22w42a.