PostProcess AnimBP of Skeletal Mesh set to Additional Meshs in AnimMontage is not evaluated

This issue does not evaluate PostProcessAnimBP for skeletal meshes set to additional meshes in AnimMontage
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If I opened PostAnimBP directly and compiled it, it also played on AnimMontage.
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1. Open attached project
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2. Open AnimMontage
   Postprocess AnimBP of Skeletal Mesh added to Additional Meshs will not play.

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