This won't always resolve your problems

Fixes

• Gray Avatars

• Blurry Icons/Textures

• Laggy Animation

• Frame Stutters

• Lighting Problems

• Bugged Meshes

• Gray Sky

• Black Textures

• Rainbow Colored Ui/Textures

• Loadding Issue

• Quality levels not changing

• Black Skybox when turning camera

• Crashing in ROBLOX after the v671 update

• Everything on the screen is white or the sky is white

• Game crashing when moving camera fast

• Capped fps even when you have it uncapped

Gray Avatars

• This issue is caused by DFintTextureCompositerActiveJobs, deleting it will help fix the issue

Blurry Icons/textures

• This issue is caused by a bunch of diffrent possible fflags, deleting these will hopefully fix the issue:

{
  "DFIntMegaReplicatorNetworkQualityProcessorUnit": "10",
  "DFFlagTextureQualityOverrideEnabled": "True",
  "FIntTextureUseACRHundredthPercent": "10000",
  "FFlagTextureUseACR3": "True",
  "DFIntTextureQualityOverride": "0",
  "FIntDebugTextureManagerSkipMips": "8"
}

Laggy Animations

• Set DFIntTimestepArbiterThresholdCFLThou to 300 to help reduce minor stutters.
• if the issue persists then add this fflag

{
"FIntInterpolationMaxDelayMSec": "100"
}

If you're still experiencing issues, try increasing the value by 15-25 units and test again.

If the problem persists, repeat the process by incrementing the value by 15-25 units each time until the issue is resolved.

Frame Stutters

• Setting DFIntMaxFrameBufferSize to 4 can help with frame stutters, if set to under 4 then it will cause laggy animation. If it doesn't help, remove the fastflag entirely.

Lighting Problems

• Remove DFFlagDebugPauseVoxelizer if the game lighting is too bright or no lighting
• if it dosent work delete FIntRenderShadowIntensity and FIntRenderShadowmapBias
• If you got pixelated lighting remove FFlagNewLightAttenuation

Weird meshes

• Could be caused by a bunch of fflags, delete these to resolve the issue:

FIntTerrainArraySliceSize
DFFlagDebugSkipMeshVoxelizer
DFIntCSGLevelOfDetailSwitchingDistance
DFIntCSGLevelOfDetailSwitchingDistanceL12
DFIntCSGLevelOfDetailSwitchingDistanceL23
DFIntCSGLevelOfDetailSwitchingDistanceL34

Gray Sky

• Remove FFlagDebugSkyGray to restore the normal sky color.

Black Textures

• Remove DFIntRenderClampRoughnessMax to fix getting weird black textures

Rainbow Colored UI/Graphics

• Removing FFlagDebugDisplayUnthemedInstances will help resolve the problem

Loadding Issue

There are alot of stuff that could be the reason why this happens.

• Too much FastFlags in your FFlag list anything over 5kb can be issues for low end PC’s anything over 10kb can be an issue high end PC’s.

• Preloading FastFlags Even though preloading is supposed to help you, it may cause issues with loading times.

• MTU/Network Connection FastFlags Network FastFlags can be a problem for some people.

• DFIntDataSenderRate value can cause issues if it is in the negatives

• Delete DFIntNetworkStopProducingPacketsToProcessThresholdMs

• set FStringGetPlayerImageDefaultTimeout to 1 to help load faster

Explanation By Scroom

Quality Levels Not Changing

• Remove DFIntDebugFRMQualityLevelOverride to fix the problem, this flag caps what the level you set the value as. (e.g. setting the value as 1 will cap the quality/graphics level to 1)

Skybox turns black when moving your camera

{
    "FFlagDebugSkyGray": "True",
    "FIntCameraFarZPlane": "600"
}

• Remove these fastflags to fix this issue.

Crashing in ROBLOX after the v671 update

• Remove these fastflags.

DFIntRuntimeConcurrency    2147483647
FFlagConvertDefaultObjectsMxBoostToRuntime    True
FIntRuntimeMaxNumOfConditions    2500
FIntRuntimeMaxNumOfLatches    2500
FIntRuntimeMaxNumOfMutexes    2500
FIntRuntimeMaxNumOfSchedulers    2500
FIntRuntimeMaxNumOfSemaphores    2500
FIntRuntimeMaxNumOfStrands    2500
FIntRuntimeMaxNumOfThreads    2500
FIntRuntimeWorkerStackSize    2147483647

• These values are much stabler on higher end PC's.

Everything on the screen is white or the sky is white

• Remove FFlagSkyUseRBGEEncoding to fix this issue. This flag may give white sky in some games that support RBGE Encoding.

Game crashing when moving camera fast.

• Try deleting this:

"DFIntPerformanceControlFrameTimeMax": "1",
"DFIntPerformanceControlFrameTimeMaxUtility": "-1",
"DFIntGraphicsOptimizationModeMaxFrameTimeTargetMs": "25"
"FFlagMovePrerender": "True"
"FFlagMovePrerenderV2": "True"

Capped fps even when you have it uncapped

If you've set a framerate limit above 60 FPS in Roblox or Froststrap/Bloxstrap but are still capped at 60, here’s what to check:

• Avoid exclusive fullscreen If you're using Alt + Enter to go fullscreen, this may enable VSync, locking you to your monitor’s refresh rate. Try switching to windowed fullscreen.

• Laptop users: check power/performance settings Ensure you're plugged in. Then, check Windows power settings (search “Choose a power plan” > set to High performance). Also check your device’s control software (e.g. Lenovo Vantage).

• NVIDIA GPU users: check NVIDIA Control Panel Open Manage 3D Settings > look for Max Frame Rate and adjust or disable the cap.

Explanation by Scroom