BinkMediaPlayer throws errors when building UE4 with PS5 and Switch access.

Setting up Unreal Engine 4 project files…
While compiling D:\ue4-consoles\4.27c\Engine\Intermediate\Build\BuildRules\UE4Rules.dll:
d:\ue4-consoles\4.27c\Engine\Platforms\PS5\Plugins\Media\BinkMedia\Source\BinkMediaPlayer\Source\BinkMediaPlayer_PS5.Build.cs(9,28) : error CS0115: ‘BinkMediaPlayer_PS5.LibRootDirectory’: no suitable method found to override
d:\ue4-consoles\4.27c\Engine\Platforms\PS5\Plugins\Media\BinkMedia\Source\BinkMediaPlayer\Source\BinkMediaPlayer_PS5.Build.cs(10,28) : error CS0115: ‘BinkMediaPlayer_PS5.LibName’: no suitable method found to override
d:\ue4-consoles\4.27c\Engine\Platforms\Switch\Plugins\Media\BinkMedia\Source\BinkMediaPlayer\Source\BinkMediaPlayer_Switch.Build.cs(9,28) : error CS0115: ‘BinkMediaPlayer_Switch.LibRootDirectory’: no suitable method found to override
d:\ue4-consoles\4.27c\Engine\Platforms\Switch\Plugins\Media\BinkMedia\Source\BinkMediaPlayer\Source\BinkMediaPlayer_Switch.Build.cs(10,28) : error CS0115: ‘BinkMediaPlayer_Switch.LibName’: no suitable method found to override
ERROR: Unable to compile source files.

GenerateProjectFiles ERROR: UnrealBuildTool was unable to generate project files.

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I have UE 4.27 chaos source downloaded and UE 4.27 Switch and PS5 platform code ready to go. All the versions match, it just breaks on this and won’ t go any farther.