I know the 3D viewer is in Beta, but this seems like an issue with the data, not the viewer:
It shows me reaching my exit point at 17:37:25, at which point the plane icon disappears. Then there is no icon or movement until 17:38:12, when it actually shows my icon in freefall. This would suggest that the airplane hovered at my exit point for 47 seconds before I jumped. My other jump today reaches the exit point at 16:51:08 and hovers for 22 seconds until 16:51:30 before showing me in freefall.
The location points seem to line up properly, suggesting no actual lag switching between modes, so maybe a clock synchronization issue? Not critical by any means (especially since this viewer is in beta), I just wanted to make sure you were aware of it.
I have noticed there can be a hangup between the transitions from the aircraft to freefall, and also to canopy.
Like you mentioned, the cloud is still in Beta mode and this could very well be one of the algorithm issues being sorted out.
the Development team are working very hard to bring us a smoother system and this should be one of the things that’s sorted out.
Without looking at your display, I’d simply guess that it lost gps near exit time, and then picked it back up during free fall. The viewer somehow displays data to fill in the blanks during times of missing gps data.