The following is a example of what I found was the big problem. You will notice half way down I underlined and struckout the bad entry. Somehow 2 commands got put on one line. Thus the INVALIDARG or "Invalid argument" error:
GstAudio.AudioCompressionMode 0
GstAudio.DialogueVolume 1.000000
GstAudio.EnableSubtitles 2
GstAudio.MasterVolume 1.000000
GstAudio.MusicVolume 0.000000
GstAudio.SavedEnableSubtitles 1
GstAudio.SoundEffectsVolume 1.000000
GstAudio.TextLanguage -1
GstAudio.VoiceOverLanguage -1
GstAudio.VoipBehavior 0
GstRender.AmbientOcclusion 1
GstRender.AnisotropicFilter 1
GstRender.AntiAliasingDeferred 1
GstRender.AntiAliasingPost 1
GstRender.Brightness 0.550000
GstRender.EffectsQuality 1
GstRender.FieldOfView 70.000000
GstRender.FullscreenEnabled 1
GstRender.FullscreenMode 0
GstRender.FullscreenRefreshRate 59.978001
GstRender.FullscreenScreen 0
GstRender.Gamma 0.500000
GstRender.Mantle 0
GstRender.MeshQuality 1
GstRender.OverallGraphicsQuality 3GstRender.PostProcessQuality 1
GstRender.ResolutionHeight 900
GstRender.ResolutionScale 1.000000
GstRender.ResolutionWidth 1600
GstRender.ScreenSafeAreaHeight 0.950000
GstRender.ScreenSafeAreaWidth 0.950000
GstRender.ScreenUIScale -1.000000
GstRender.ScreenUIXOffset 0.000000
GstRender.ScreenUIYOffset 0.000000
GstRender.ShadowQuality 1
GstRender.TerrainQuality 1
GstRender.TessellationQuality 1
GstRender.TextureQuality 1
GstRender.UndergrowthQuality 1
GstRender.VSyncEnabled 1
GstRender.WaterInteractQuality 1
GstInput.CameraAutoCenter 1
GstInput.GamePad 1
GstInput.MouseRawInput 0
GstInput.MouseSensitivity 0.400000
GstInput.MouseSmoothing 0.200000
GstInput.Scheme0FlipX 0
GstInput.Scheme0FlipY 0
GstInput.Scheme0Sensitivity 0.550000
GstInput.SwapMouseButtons 0
GstInput.Vibration 1
Before you make any corrections make a back up of "ProfileOptions_profile" by copy and save as "ProfileOptions_profile_old" just in case something goes wrong as you make changes.
In this example I underlined how the commands should read.
This is an example of how it should read:
GstAudio.AudioCompressionMode 0
GstAudio.DialogueVolume 1.000000
GstAudio.EnableSubtitles 2
GstAudio.MasterVolume 1.000000
GstAudio.MusicVolume 0.000000
GstAudio.SavedEnableSubtitles 1
GstAudio.SoundEffectsVolume 1.000000
GstAudio.TextLanguage -1
GstAudio.VoiceOverLanguage -1
GstAudio.VoipBehavior 0
GstRender.AmbientOcclusion 1
GstRender.AnisotropicFilter 1
GstRender.AntiAliasingDeferred 1
GstRender.AntiAliasingPost 1
GstRender.Brightness 0.550000
GstRender.EffectsQuality 1
GstRender.FieldOfView 70.000000
GstRender.FullscreenEnabled 1
GstRender.FullscreenMode 0
GstRender.FullscreenRefreshRate 59.978001
GstRender.FullscreenScreen 0
GstRender.Gamma 0.500000
GstRender.Mantle 0
GstRender.MeshQuality 1
GstRender.OverallGraphicsQuality 3
GstRender.PostProcessQuality 1
GstRender.ResolutionHeight 900
GstRender.ResolutionScale 1.000000
GstRender.ResolutionWidth 1600
GstRender.ScreenSafeAreaHeight 0.950000
GstRender.ScreenSafeAreaWidth 0.950000
GstRender.ScreenUIScale -1.000000
GstRender.ScreenUIXOffset 0.000000
GstRender.ScreenUIYOffset 0.000000
GstRender.ShadowQuality 1
GstRender.TerrainQuality 1
GstRender.TessellationQuality 1
GstRender.TextureQuality 1
GstRender.UndergrowthQuality 1
GstRender.VSyncEnabled 1
GstRender.WaterInteractQuality 1
GstInput.CameraAutoCenter 1
GstInput.GamePad 1
GstInput.MouseRawInput 0
GstInput.MouseSensitivity 0.400000
GstInput.MouseSmoothing 0.200000
GstInput.Scheme0FlipX 0
GstInput.Scheme0FlipY 0
GstInput.Scheme0Sensitivity 0.550000
GstInput.SwapMouseButtons 0
GstInput.Vibration 1
1. Once you have made the corrections use "save as" in notepad.
2. Under file type at the bottom select all files.
3. Find "ProfileOptions_profile" that has file as an attribute. Select it and then click save.
Hope this helps.