Can’t build if memorylayout<>.stride and memorylayout<>.size different?

Question

in metal file,

1. Struct { float2 float3 float float } size. 8+(8)+16+4+4=40 stride. 48

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2. Struct { float3 float2 float float } size. 16+8+4+4=32 stride. 32

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Using metal file, i made image filter. However Case 1 was implemented, but not 2.

Only size=stride can work?

Thank you!!