Bug Report (Console all of a sudden gets spammed with "CUtlLinkedList overflow! (exhausted index range)" millions of times, causing extreme FPS loss.

Illusion™ · Jun 11, 2026

Type of Bug: Map

Description of the Bug: Console all of a sudden gets spammed with "CUtlLinkedList overflow! (exhausted index range)" millions of times, causing extreme FPS loss. The only solution I have so far is to retry in console.

How to reproduce the Bug: This only seems to happen around PD. It happens randomly from what I can tell, but only after being on for a little bit (over ~45 minutes). After being on for a bit, if you walk around PD, it has a chance of happening. I have not been able to reproduce it in any other location other than near PD (like on the sidewalk outside PD or PD public parking lot).

Time Stamp: 8:57 PM EST on Jun 10, 2026.

Errors: CUtlLinkedList overflow! (exhausted index range)

Media: https://i.gyazo.com/70f0ba0368642566363f5d5bd0cd5bd4.png

Here it is happening on two occasions, about 15 minutes apart (I rejoined after the first one).

LinkedList 1 - Clipped Garry's Mod with Medal.tv

12 Views - Watch LinkedList 1 by CheddarStick and millions of other Garry's Mod videos on Medal. #garrysmod

medal.tv

LinkedList 2 - Clipped Garry's Mod with Medal.tv

Watch LinkedList 2 by CheddarStick and millions of other Garry's Mod videos on Medal. #garrysmod

medal.tv

LinkedList 3 - Clipped Garry's Mod with Medal.tv

Watch LinkedList 3 by CheddarStick and millions of other Garry's Mod videos on Medal. #garrysmod

medal.tv

Ryan Lucas · 2026-06-20T12:27:11+0100

sometimes when it gets too severe and wont fix, i do "r_flushlod" in the console and it fixes but its only a temporary fix
note: this will freeze ur game for a few seconds

privateme · 2026-06-20T12:44:59+0100

Happened yesterday when in a PD chase with lots of cars:

Untitled - Clipped Garry's Mod with Medal.tv

Watch Untitled by privateme and millions of other Garry's Mod videos on Medal. #garrysmod

medal.tv

peeps · 2026-06-20T13:52:21+0100

Just as an update, we have been aware of this issue for a long while, but identifying the entity actually causing the problem is not easy, and the causes for this issue are not well documented.

peeps · 2026-06-20T14:05:40+0100

To the people who have experienced this, are you using r_shadows 0?

Dom/1878 · 2026-06-20T14:14:18+0100

peeps said:
To the people who have experienced this, are you using r_shadows 0?

I’d say not a main issue, @privateme has r_shadows 1 I believe

Looks it in the clip they provided at least

Dahweeble · 2026-06-20T15:05:24+0100

peeps said:
To the people who have experienced this, are you using r_shadows 0?

I've gotten it with r_shadows set to 1 and 0

peeps · 2026-06-20T15:49:48+0100

one cause of the issue can be fixed with r_shadows 0. If it is happening with that set i have no idea again.

Bug Report (Console all of a sudden gets spammed with "CUtlLinkedList overflow! (exhausted index range)" millions of times, causing extreme FPS loss.

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