[Serverx64] Animation does not work

[LlnkerZ]

Details

Initially, I was working on the x32 stable branch, but decided to switch to x64 for a couple of tests and discovered that animations on all models (most likely idle) break or do not load on the server side. This can be verified by simply taking the “weapon_fists” sweep or spawning the “npc_barney” NPC.

The server is completely clean, with no add-ons. I installed it via steamcmd, like everything else.

I don't know how long this problem has been around, but I noticed it right away.

And I checked everywhere on Windows Server x64, on Linux x64 (Ubuntu 20-24), everything is the same everywhere.

If you need more information, please let me know, because I don't know what else to provide.

arms in the video, it's just a mesh replacement everything was fine on x32
video

ConsoleLog:

root@vds-119947:~/Steam/steamapps/common/GarrysModDS# ./srcds_run_x64


************** WARNING ***************
Running the dedicated server as root  
is highly discouraged. It is generally
unnecessary to use root privileges to 
execute the dedicated server.         
**************************************


WARNING: No map specified! Defaulting to gm_construct
Auto detecting CPU
Using default binary: ./bin/linux64/srcds
Server will auto-restart if there is a crash.
LD_LIBRARY_PATH=/root/Steam/steamapps/common/GarrysModDS/bin/linux64:.:bin/linux64:linux64:

Console initialized.
#Failed to load /root/Steam/steamapps/common/GarrysModDS/bin/linux64/stdshader_dbg.so: (null)
#Failed to load stdshader_dbg.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/bin/linux64/stdshader_dx6.so: (null)
#Failed to load stdshader_dx6.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/bin/linux64/stdshader_dx7.so: (null)
#Failed to load stdshader_dx7.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/bin/linux64/stdshader_dx8.so: (null)
#Failed to load stdshader_dx8.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/bin/linux64/stdshader_dx9.so: (null)
#Failed to load stdshader_dx9.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/bin/linux64/game_shader_dx6.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/garrysmod/bin/game_shader_dx6.so: (null)
#Failed to load game_shader_dx6.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/bin/linux64/game_shader_dx7.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/garrysmod/bin/game_shader_dx7.so: (null)
#Failed to load game_shader_dx7.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/bin/linux64/game_shader_dx8.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/garrysmod/bin/game_shader_dx8.so: (null)
#Failed to load game_shader_dx8.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/bin/linux64/game_shader_dx9.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/garrysmod/bin/game_shader_dx9.so: (null)
#Failed to load game_shader_dx9.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/bin/linux64/game_shader_generic_garrysmod.so: (null)
#Failed to load /root/Steam/steamapps/common/GarrysModDS/garrysmod/bin/game_shader_generic_garrysmod.so: (null)
#Failed to load game_shader_generic_garrysmod.so: (null)
#Game.so loaded for "My Garry's Mod Server"
Setting breakpad minidump AppID = 4000
Initializing Steam libraries for Workshop..
[S_API] SteamAPI_Init(): Loaded local 'steamclient.so' OK.
IPC function call IClientUtils::GetSteamRealm took too long: 50 msec
SteamInternal_SetMinidumpSteamID:  Caching Steam ID:  76561197960265728 [API loaded no]
[S_API FAIL] Tried to access Steam interface SteamUser023 before SteamAPI_Init succeeded.
WS: No +host_workshop_collection or it is invalid!
Mounted 0 of 0 workshop addons!
CWorkThreadPool::~CWorkThreadPool: work processing queue not empty: 1 items discarded.
[S_API FAIL] Tried to access Steam interface STEAMUSERSTATS_INTERFACE_VERSION012 before SteamAPI_Init succeeded.
Unknown command "cl_cmdrate"
Unknown command "cl_updaterate"
Network: IP 46.174.54.170, mode MP, dedicated Yes, ports 27015 SV / 41543 CL
Error loading cfg/trusted_keys_base.txt
Error loading cfg/pure_server_minimal.txt
Executing dedicated server config file server.cfg
Using map cycle file cfg/mapcycle.txt.
Initializing Steam libraries for secure Internet server
[S_API] SteamAPI_Init(): Loaded local 'steamclient.so' OK.
SteamInternal_SetMinidumpSteamID:  Caching Steam ID:  76561197960265728 [API loaded no]
No account token specified; logging into anonymous game server account.  (Use sv_setsteamaccount to login to a persistent account.)
Server ranking in server browser will be negatively impacted due to sv_setsteamaccount not being set.
Connection to Steam servers successful.
   Public IP is 46.174.54.170.
Assigned anonymous gameserver Steam ID [A-1:2644116481(48194)].
VAC secure mode is activated.
Client "228_Xx_Porno masteR_xX_228" connected (95.31.52.58:62033).
Giving 228_Xx_Porno masteR_xX_228 a weapon_fists

Steps to reproduce

Default instlling x86-64 beta version server app_update 4020 -beta x86-64

Version of the game

Protocol version 24
Network version 2025.03.26 (garrysmod)
Exe build: 19:12:35 Dec 9 2025 (9894) (4000)
GMod version 2025.12.19, branch: x86-64
Linux 64bit Dedicated Server

Beta

x86-64 beta

[LlnkerZ]

For some reason, the server does not load all animations for the model.

print(Entity(1):GetSequenceCount())

On the client, the model has 2000+ sequences.
On the server, the same model reports only 400+ sequences.

Because of this, many valid sequences return on the server when calling:-1

Entity(1):LookupSequence("sequence_name")

This works correctly on x86 servers, but on x64 servers a large portion of animations is missing on the server side, even though:

the model exists,

the client has all animations,

the same content works correctly on x86.

[LlnkerZ]

the client is also on the x64 branch, but everything works there
CLIENT:

Bad sequence (2199 out of 2198 max) in GetSequenceName() for model 'player/group01/female_01.mdl'!

SERVER:
Bad sequence (464 out of 463 max) in GetSequenceName() for model 'player/group01/female_01.mdl'!

Perhaps the issue lies in the difference between the animation limits on the client and server.

[LlnkerZ]

I discovered that animation files do not load from the workshop, but if I force them into addons/models, everything loads correctly. However, I attempted to place them in garrysmod/models, and it did not work. This may be the root of the issue.

[robotboy655]

It is clear that your client and server have mismatched models or addons that add or replace models.

[LotarCommander]

It is clear that your client and server have mismatched models or addons that add or replace models.

Key observation:
Animations do not load from Workshop, but work if placed in garrysmod/addons/test/models/.
The path garrysmod/models/ does not work on x64, although it worked on x32.

it's not about his animations, even the default animations from c_arms are not loaded

[JokerR3310]

It is clear that your client and server have mismatched models or addons that add or replace models.

More information regarding this weird issue

it only occurs if you host a Local server thru Garry's Mod (not a dedicated server), and then you need a second PC or account (or friend) to join that server, and ONLY for that second player all base game NPC animation will be broken, but for the host player everything will be just fine.

Hosting a dedicated server with srcds.exe does NOT have this behavior, at least in my tests.

This is NOT a new problem, in fact, it has been around for many years, as far as I can tell.

This issue occurs on any branch: main, dev, x86-x64 (both). And any combination of them
I only tested it on Windows 10 64-bit LTSC

First test PC based on the Intel platform
Second test PC based on the AMD platform
(Both PCs were tested as host and as client, problem still occurs for the client but not for the host)

on both test PC i used -noaddons -noworkshop

Every time I switch branches, I do "check game file integrity" on both PCs.

This is exact same problem posted in discord at the beginning of 2025:
https://discord.com/channels/565105920414318602/1328070401095372841

Both screenshots were taken at exactly the same time on two test computers

HOST POV:

CLIENT POV:

[robotboy655]

Again, this appears to be an issue on your end, and is not reproducible without any mods: (dev beta, local multiplayer using -multirun)

I have tried 2 multirun copies of x86-64 as well, same thing, it works as expected.

You can use whereis command (on client only) to see what addons or whatever else is the model coming from.
For barney, this would be whereis models/barney.mdl for example.
In your testing scenario, entering the command in both of those player's console (SHIFT+ESC) should reveal the culprit.

[JokerR3310]

That strange, I'm still thinking about it, it doesn't make sense, it's definitely a mismatched models somewhere somehow. Because this only happens to Barney and a couple of other NPCs, not all NPCs are affected.

[robotboy655]

NPCs models usually use other models as well, for barney its these:

models/barney_animations.mdl
models/humans/male_shared.mdl
models/barney_postures.mdl
models/barney_gestures.mdl

Any one of these can be the culprit as well.