Dynamic gravity for characters

I’m updating to 4.11 version and got it working, but seems like I got some issues with the movement replication (sometimes I got an offset between the client character position and the server character position).

Is there any better implementation or some information about when epic will add on the release branch?

I will try to fix the replication problems, but I leave here the cpp and h if someone wants to use it or help me.

cpp: https://drive.google.com/open?id=0B2t6LXK5hAzUXzBfSHlPakhpeXc
h: https://drive.google.com/open?id=0B2t6LXK5hAzUZWJla1BORDRfM3c