Category:
Client bug / Streaming / Map loading
Client and server version:
- FiveM client channel: production
- GTA game build: b3258
- FXServer artifact version: cerulean
- Server OS: Windows
- OneSync: on
- sv_enforceGameBuild: 3258
- Crash report ID: si-ddd3cc9ebee1452b8d913de2725f4ba4
What I expected to happen:
The client should connect to the server and finish session initialization normally.
The custom map resources have been running on the server for around one year without recent changes, so the map streaming process should continue to work as before.
What actually happens:
The FiveM client crashes during or shortly after map streaming / session initialization.
Crash signature:
GTA5_b3258.exe+7A3BBF
Legacy crash hash: idaho-don-network
The crash dump shows an access violation:
Exception code: 0xC0000005
Read address: 0x0000000000000000
The call stack starts with:
GTA5_b3258.exe+7A3BBF
GTA5_b3258.exe+7C38AE
GTA5_b3258.exe+7C3D10
GTA5_b3258.exe+7361C5
GTA5_b3258.exe+73748C
GTA5_b3258.exe+6FC25A
GTA5_b3258.exe+91F5B3
Category of bug:
Client / streaming / map loading
Reproducible steps:
- Start the server with the current map resources enabled.
- Connect with a FiveM production client using GTA build 3258.
- Wait for the client to download/mount the streamed resources.
- The client crashes during or shortly after map loading/session initialization.
Relevant resource context:
The server uses several custom map resources that have not been modified for about one year.
Relevant map/streaming resources include:
- dhmaps
- M1
- M2
- M3
- M4
- ugase_city_by_based
- Downhillerz_Sign
- Minimap
The crash appears near the map streaming / map store reload stage. The client log contains several map-related entries before the crash, including repeated RELOAD_MAP_STORE activity and gtxd mounting.
Relevant log signs before the crash:
- Multiple CFX_PSEUDO_ENTRY RELOAD_MAP_STORE entries
- Performing deferred RELOAD_MAP_STORE appears more than once
- Many .ybn collision files are loaded
- gtxd.meta files are mounted for multiple map resources
Additional notes:
The custom map resources have not been edited recently. This started happening without any recent map resource changes on our side.
Because of that, this may be related to a recent FiveM client, game build, artifact, or map streaming behavior change rather than a newly introduced resource change.
I am not asking for general support. I am reporting this because the crash signature appears to happen inside GTA5_b3258.exe during map streaming/session initialization, and the same resources were previously stable.
CfxCrashDump_2026_05_07_09_25_35.zip (1.8 MB)