IPhone6 PIP video slightly behind overlay and GoPro Video

[DanMay]

I am running HLT v19.0.8 Grand Prix edition on my IPhone 6, controlling a GoPro 3+ via WiFi.
I recorded 5 races this weekend, and used the overlay feature to create a PIP of the IPhone front camera video using the GoPro video as my master.

The problem is the IPhone6 PIP video is slightly behind from the GoPro video and the overlay data. You can see an example here:
https://www.youtube.com/watch?v=PqJalV-R5vQ

The sound from the GoPro, and the HLT overlay data (GPS and Speed) all seem to be in sync, but the PIP data looks to be about a second behind.

Any ideas ?

Daniel

[Harry]

Select the original PiP video from Video List, scroll down to the bottom and touch the lap you are overlaying. Now, adjust the sync point a bit. In case PiP is behind, shift the sync point forward (make it smaller).

Harry