Hey ,
I’ve got an email out to some of our engineers. I was able to reproduce this in Crocopede’s Ledge Climbing System project when adding a blend out to his montages. I’m basically talking to the engineers to see if this is an engine bug or if there is a content fix.
The weird thing is that in this example project, I was only adding a 0.25 blend out, but the root movement ends much earlier in the animation (kind of like your workaround). However in this project, it still breaks it.