Hi kurosu143,
I created JIRA UE-37270 for the issue. We will be investigating further. You can follow that link to the Public Tracker so monitor it’s status and feel free to vote on the issue.
As a workaround, you could do what I was unintentionally doing when I was first testing and that’s to turn Sub-stepping on. You will have to play around with the values to see what works for you.
Another option would be to not place the rotation functionality inside of a SceneComponent class. The issues doesn’t seem to be a problem in an Actor class blueprint.
Cheers,
TJ