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Common Problems

Symptom first, then cause. Console messages are quoted as CCDS emits them, so you can search for the exact text.

First: turn the logs on

Most CCDS problems announce themselves. Informational logs are gated:

enableDebugMessages ships off, so CCDS.DebugLog output is silent. Set it to true in CCDS_Settings.asset (Build tab → Developer Settings) while diagnosing, and turn it back off before you ship. Warnings and errors always emit regardless.

Then run Tools → BoneCracker Games → CCDS → Open Validation Panel on the affected scene. It names missing references directly and resolves a large share of setup problems on its own.

Setup and import

Symptom Cause Fix
Compile errors right after import Input System, URP or TMP missing Run the Setup Wizard's Dependencies step
Pink materials everywhere Project is not URP Create the project from the Universal 3D template, or convert
CCDS_Settings asset not found in Resources folder! The asset was moved or deleted It must be at Assets/CCDS/Resources/CCDS_Settings.asset
CCDS_PlayerVehicles asset not found in Resources folder! Same Must be at Assets/CCDS/Resources/CCDS_PlayerVehicles.asset
Missing TMP text everywhere TMP Essentials not imported Window → TextMeshPro → Import TMP Essential Resources
Tools → BoneCracker Games → CCDS → Documentation does nothing The HTML mirror was moved or deleted It must be at Assets/CCDS/Documentation/HTML/00_Index.html

Both Resources.Load lookups are by name. Moving either asset out of a Resources folder breaks it even though the file still exists.

Play mode

Symptom Cause
playerVehicles array is null or empty! Cannot spawn vehicle. No vehicles in CCDS_PlayerVehicles.asset
No valid vehicles found in playerVehicles array! Entries exist but every vehicle field is empty
Cannot spawn player - no valid vehicle prefab! Selected index points at an empty entry
CCDS_PlayerVehicles.Instance is null! Cannot validate vehicle index. Asset missing from Resources
Vehicle falls through the world No ground collider — ACCDS_Vehicle.OnEnable raycasts downward
Vehicle spawns but will not move Engine off, or CCDS holds a control lock
All spawn points occupied within … Too few CCDS_SpawnPoint objects for the player count
Failed to spawn player in fallback! Spawn resolution exhausted every fallback
No HUD gameplayUIManager unassigned in CCDS_Settings
Minimap blank City geometry not on CCDS_Map, or the minimap camera is missing

startEngineAtStart (shipped true) controls whether the engine runs at gameplay start. If you disabled it, the player must press I.

Vehicle reset

Symptom Cause
R does nothing Above 25 absolute speed — reset is ignored
Can't reset vehicle during a pursuit! Reset is blocked while busting. Working as designed.
CCDS Player: Cannot hard reset because no spawn points are configured. No CCDS_SpawnPoint in the scene
CCDS Player: Cannot hard reset because GameplayManager is missing. Managers not created in this scene
CCDS Player: Hard reset spawn point occupied within … Another vehicle is sitting on the spawn

Missions

Symptom Cause
CreateMission: CCDS_MissionObjectiveManager not found in scene! Run Create Scene Managers → Gameplay
CreateMissionPosition: CCDS_MissionObjectivePositionsManager not found in scene! Same
Marker prompt shows, key does nothing Marker's mission field is empty
Mission starts with no objectives No CCDS_MissionObjectivePosition, or created without the manager
AI pursuit prefab not assigned to mission … Assign pursuitVehicle in CCDS_Settings or on the mission
AI component couldn't found on … Mission AI vehicle is missing RCCP_AI
AI cars never move NavMesh not baked, or baked before the geometry changed
Objectives in the wrong order Order comes from the positions list
Marker stuck on cooldown markerCooldown is high, or completion was never raised

Multiplayer

Symptom Cause
Not connected to Photon. Cannot create room. Call ConnectToPhoton() and wait for OnNetworkConnected
CCDS Network Manager: Authentication failed App ID wrong or missing
CCDS Network Manager: Server is full Free-tier CCU limit reached
CCDS Network Manager: Connection timeout - attempting reconnection Network or region problem — try ConnectToRegion
Already in a room. Leave current room before … Call LeaveRoom() first
Room name is required for JoinOrCreateRoom. Pass a non-empty name
Cannot spawn player - not in multiplayer room. Spawning before OnJoinedRoom
Cannot spawn player - vehicle prefab is null. Selected vehicle entry is empty
Multiplayer panel not found in scene! Falling back to singleplayer. CCDS_UI_MultiplayerPanel missing from the scene
Photon callbacks never fire OnEnable/OnDisable not public override calling base
Remote vehicles stutter Send/serialization rates too low, or RCCP_PhotonSync missing
Remote vehicles do not move at all PhotonView present, RCCP_PhotonSync absent
Traffic differs between clients A client is spawning traffic; only the master may
Non-participants see mission AI Mission AI being spawned over the network instead of locally
Both local test clients share one save Enable useProcessIdForSaveFile while testing (it ships off)
RPC_RegisterPlayer failed - CCDS_Player component not found … Vehicle prefab is missing CCDS_Player

The callback one is worth repeating. Making a class inherit MonoBehaviourPunCallbacks without public override void OnEnable() { base.OnEnable(); … } silently hides the base method. No Photon callback fires, the compiler gives at most a warning, and every symptom points somewhere else.

Chat

Symptom Cause
Cannot send message - not in multiplayer mode Single-player
Cannot send message - not in a room Connected but not in a room
Cannot send empty message Empty input
Chat never visible Visibility mode is Hidden — CCDS.SetChatVisibilityMode(...)

Save data

Symptom Cause
Progress lost between launches useProcessIdForSaveFile left on in a release build
Progress lost after an update Product name changed, so persistentDataPath changed
Failed to deserialize save data, attempting backup. Corrupt save; CCDS restores the backup automatically
ApplyLoadedSettings called but saveData is null! saveData read before EnsureInitialized()
Purchases forgotten Duplicate or changed saveKey
Settings changes do not stick CCDS_Settings default* fields only seed new saves

Clear the save with Tools → BoneCracker Games → CCDS → Delete Save Data, or CCDS.ResetGame().

Customization

Symptom Cause
Customization UI does nothing No RCCP_Customizer on the vehicle
Upgrade bought, nothing changes Missing RCCP_VehicleUpgrade_* component
Price differs from the cart item Expected — upgrade price scales with level
Button or levelText is null in UpgradeLevel getter! Unassigned references on CCDS_UI_PurchaseUpgrade
Prefab values keep reverting Sync All Vehicles rewrites them from the roster
Wrong wheels applied CCDS_ChangableWheels.wheels was reordered

Build

Symptom Cause
Black screen on device Scene missing from the scene list, or wrong index
Colours washed out on mobile Colour space mismatch
No touch controls on mobile Build target never switched, so mobileControllerEnabled was never set
Debug panel in a shipped build enableDebugPanel left on after development
Build larger than expected overrideLightmapTextures off, or the prototype scene included

Still stuck

Email bonecrackergames@gmail.com with:

  1. Unity version and target platform.
  2. CCDS version (CCDS_Version.version — currently 1.6).
  3. Single-player or multiplayer.
  4. The full Console error text.
  5. Reproduction steps from a fresh project if you can.

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Document details

Generated from: 05_Troubleshooting/01_Common_Problems.md
Date: 2026-09-15 07:52
(c) 2014 - 2026 BoneCracker Games - City Car Driving Simulator 1.6