I appreciate there are a number of threads on this subject but none seem to address my problem.

I am using Skydemon on iPad mini with Dual XGPS150E external gps receiver.  I have not had it up in the aircraft yet but have been checking it out in my car.   The Dual app shows a good strong signal with good position data.   However, Skydemon keep putting up a message saying that it is waiting for position data.  Then the position will come back and then drop out again.  Similarly, there is no groundspeed and no heading shown on the screen even when I am doing 60 mph.  Skydemon does correctly say at the top of the screen that I am still on the ground, maybe this is the reason for the other issues.

Is this normal and do I actually have to get airborne for skydemon to work properly?

PS Using V3.2.1.1

I flew on Wednesday last (15/4/15) and didn't realise there were 8.3 issues. I have a Bad Elf Pro+ and we flew almost 2 hours with a perfect GPS lock on my iPad Mini 3 which does have an internal GPS but I tend to use the Bad Elf as it tends to be more robust and reliable.

I have just checked again now, with the internal GPS both off and on, and am getting a position fix on SD as soon as the GPS gets a navigation lock.

I always make sure I update the i-devices by connecting to my Mac and updating through iTunes as the OTA update is reputedly more likely to introduce issues as it (apparently) only updates and patches iOS whereas an iTunes hard-wired update refreshes a complete replacement OS. How true this is I don't know but there have been reported comparisons with the download images for both the OTA/WiFi update and the iTunes update and the iTunes update is a fair bit bigger.

I haven't flown for a few weeks but I wish I'd visited the forum before I flew today. I only updated my iPad yesterday and like everyone else I couldn't benefit by using SD with my Garmin glow.
My wife does have a nexus 7 so I'll have to give that a try until apple sort it out.
I did try to downgrade back to OS 8.2 but the downloaded zipped file didn't seem to work when I synced my iPad to my PC