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1

RDB_MISMATCH error when joining modded servers on Xbox Series X

Multiplayer
1

State

Open
Issue key
ARGF-711
Access
Public
Space
Arma Reforger
Project
Game Feedback
Creator
ruper12
Created
Oct 10, 2026
Views
9
Platform
Xbox
Game Version
1.8.0.13
Mission
—
Is it modded?
yes
Section
List mods

Pon la lista de mods que tenías habilitados cuando te daba el error. Como ya los borraste y descargaste de nuevo, podemos reconstruirla con las fotos que me enviaste.

De las capturas anteriores puedo identificar estos mods:

  • ACE Backblast Dev

  • ACE Carrying Dev

  • ACE Chopping Dev

  • ACE Core Dev

  • ACE Explosives Dev

  • ACE Finger Dev

  • ACE Medical Circulation Dev

  • ACE Medical Core Dev

  • ACE Tactical Ladder Dev

  • ACE Trenches Dev

  • ACE Weather Dev

  • ATGM

  • AUS_CORE

  • Attachment Framework

  • Bacon Loadout Editor

  • Better Clouds

  • Bigger Medical Tent

  • CIE T72B

  • Catch a Ride

  • Dax Humvees

  • Donetsk

  • Extra Impact Grenades

  • FTA Persistent Ranks

  • FTA_Quickslots

  • FTA_VehicleDelay

  • KamAZ 5350

  • KittenEye_StealthGM

  • KittenEye_Tools

  • LAV-25A2ish HAZARD

  • LG_PortableRepair

  • LM Suppression

  • LM Suppression Lite

  • LOR-RAAS

  • LOR-Voice Range Changer

  • M777 Howitzer Artillery

  • MH-6J

  • MH-6J WCS Compatibility

  • Medical Tent

  • Merak Island

  • NOX Redux NVG

  • NV-System

  • RCSM for WCS

  • RDA-1

  • REA AutoCenterMap

  • REA Core

  • REAPER_NH-90 HQ

  • REAPER_RHIB

  • RMS - KA-27

  • Realistic Height & Tires

  • SESOF and CSI settings for WB

  • Screams of War

  • Server Admin Tools

  • SimMovement - Headbob

  • Sinsin Operator Beards

  • Snowzin_Trenches_Pack

  • Tactile Sound Enhancement

  • TraceVehCore

  • UAZ Ambulance FIX

  • WBConflictSerhiIvka

  • WB_Conflict_SerhiIvka

  • WB_EVERON

  • WB_MERAKISLAND

  • WCS_FMTV

  • WCS_M2A2

  • WCS_RHS_Attachments

  • WCS_RHS_Scopes

  • WCS_ZU-23-2

  • Where Am I

  • Wirecutters 2

  • Zagoria 89 BMP2


This is a reconstructed list of mods previously enabled on my Xbox. The error persists after deleting and redownloading the mods.

Description

I am experiencing a persistent RDB_MISMATCH error when joining modded multiplayer servers in Arma Reforger on Xbox Series X.

Error message:
“Kick cause code: group=4 ‘DATA’, reason=1 ‘RDB_MISMATCH’”

The issue occurs on multiple different modded servers. The game starts loading the server, but I receive the error and get kicked back to the server browser.

Official vanilla servers without mods work correctly.

Troubleshooting already performed:

  • Deleted all downloaded mods.

  • Downloaded the required mods again.

  • Retried joining multiple different modded servers.

  • Confirmed that the issue persists after reinstalling the mods.

The problem is still present on game version 1.8.0.13.

I do not want to delete all game data or reinstall the entire game unless there is evidence that this is necessary, because downloading the required mods again on Xbox takes a very long time.

Please investigate whether this is a known issue related to mod data, server compatibility, or the current game version.

Platform: Xbox Series X
Game version: 1.8.0.13

Attachment6 files · visible to everyone

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Reactions

Activity

    about 11 hours ago
  • ruper12
    created issueabout 11 hours ago

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State

Open
Issue key
ARGF-711
Access
Public
Space
Arma Reforger
Project
Game Feedback
Creator
ruper12
Created
Oct 10, 2026
Views
9