Synthetic's UI wasn't updating

[cm13-issue-bot]

Testmerges

#12627: 'Tyrargo Rift (2) - Various Alterations' by Steelpoint at commit 73b8f408b2
#12640: 'Fuel pumps have health during hijack + bullet ping fix + trapper shotgun flag fix' by Drulikar at commit 149d40c8b6
#12721: 'Assorted Sound Fixes' by fira at commit 85e10735bf
#12824: 'Bundles Wound Overlay Updates' by fira at commit 6b48f2d5f1
#12825: 'Optimize /datum/controller/subsystem/minimaps/proc/add_marker' by fira at commit 1a869a8443
#12753: 'PR Stack - Movement Optimizations' by fira at commit 3082e3cb2b
#12322: 'Fort McNeil - (Lowpop) Ground Map' by Steelpoint at commit d16cb3bb7b
#12895: 'Research rework - Xenobiology edition' by Watermelon914 at commit 42c46ca058

Round ID

35792

Description of the bug

The synthetic's UI was stuck with shrapnel on it, and their little health guy was stuck gray. I'm not entirely certain what the issue is, but there is a runtime included below.

What's the difference with what should have happened?

HUD should update probably

How do we reproduce this bug?

1. be a synth
2. I'm not sure.

Attached logs

[2026-08-11 20:53:47.725] runtime error: Cannot read null.organ_status
 - proc name: handle regular hud updates (/mob/living/carbon/human/proc/handle_regular_hud_updates)
 -   source file: code/modules/mob/living/carbon/human/life/handle_regular_hud_updates.dm,93
 -   usr: null
 -   src: Reginald (/mob/living/carbon/human)
 -   src.loc: the hypersleep chamber (/obj/structure/machinery/cryopod/right)
 -   call stack:
 - Reginald (/mob/living/carbon/human): handle regular hud updates()
 - Reginald (/mob/living/carbon/human): set stat(0)
 - Reginald (/mob/living/carbon/human): handle regular status updates(1)
 - Reginald (/mob/living/carbon/human): Life(2)
 - Human Life (/datum/controller/subsystem/human): fire(0)
 - Human Life (/datum/controller/subsystem/human): ignite(0)
 - Master (/datum/controller/master): RunQueue()
 - Master (/datum/controller/master): Loop(2)
 - Master (/datum/controller/master): StartProcessing(0)

Additional details

• Author: SmellyHippie
• Admin: SmellyHippie
• Note: None

[dadlips]

Update: The synthetic was revived prior to this happening. It seems as though the UI was stuck to the one they had while they were dead, specificaly. and it happened again with a similar runtime:

[2026-08-11 21:11:15.322] runtime error: Cannot read null.organ_status

• proc name: handle regular hud updates (/mob/living/carbon/human/proc/handle_regular_hud_updates)
• source file: code/modules/mob/living/carbon/human/life/handle_regular_hud_updates.dm,91
• usr: null
• src: Reginald (/mob/living/carbon/human)
• src.loc: the floor (172,51,12) (/turf/open/shuttle/dropship/medium_grey_single_wide_up_to_down)
• call stack:
• Reginald (/mob/living/carbon/human): handle regular hud updates()
• Reginald (/mob/living/carbon/human): set stat(0)
• Reginald (/mob/living/carbon/human): handle regular status updates(1)
• Reginald (/mob/living/carbon/human): Life(2)
• Human Life (/datum/controller/subsystem/human): fire(1)
• Human Life (/datum/controller/subsystem/human): ignite(1)
• Master (/datum/controller/master): RunQueue()
• Master (/datum/controller/master): Loop(2)
• Master (/datum/controller/master): StartProcessing(0)

There was also another runtime:

[2026-08-11 22:38:52.546] runtime error: Cannot read null.w_class

• proc name: Yank out object (/mob/proc/yank_out_object)
• source file: code/modules/mob/mob.dm,826
• usr: (src)
• src: Reginald (/mob/living/carbon/human)
• src.loc: the floor (53,54,12) (/turf/open/shuttle/lifeboat/catwalk)
• call stack:
• Reginald (/mob/living/carbon/human): Yank out object()