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32-bit FP WAV File Support?

In UE4.26 it is possible to import an audio file recorded in 32-bit Floating Point (FP) format. It seems this is no longer the case in UE4.27 or in UE5. Every time I try importing a 32-bit FP wav file in either UE4.27 or UE5 I get an error that the format is not supported. Is this a bug? If it’s intentional, and there’s no longer support for importing 32-bit FP wav files, is there a workaround other than converting the files to 24-bit first?