This is NOT A DUPLICATE of MC-121788. That issue is entirely separate.
MC-121788 Is a bug in which effects don't apply until relog
MC-152258 Is a bug in which effects DO apply but regardless of relog, slow falling does not prevent fall damage on a ridden horse
I added a forced crash report.
Brandon Lea
This is NOT A DUPLICATE of MC-121788. That issue is entirely separate.
MC-121788 Is a bug in which effects don't apply until relog
MC-152258 Is a bug in which effects DO apply but regardless of relog, slow falling does not prevent fall damage on a ridden horse