Yep, I FINALLY got it working today with my Hero 7 black. You HAVE to use GoPro Quik, GoPro Studio is clueless about GPS data. I'm glad this problem is finally behind me. It's been bedeviling me for months!
I can confirm the same... I purchased a 7 and was able to add the speed... it didn't work using the one touch button .. but turning it on first and then starting the recording it did... (my 6 works with the one touch button)
I've noticed the same. Vids that started recording after the GoPro was already on tend to have their GPS data available in Quik, whereas those that were shot using QuickCapture are missing it.
There must be a delay until the GPS signal is properly captured by the GoPro, and it seems like if the signal isn't available right at the moment when the recording begins, then too bad so sad for that one vid.
I've done a firmware update on the camera to see if this problem has remained on the latest firmware. Will test and re-post.
I can confirm today that you are correct. turning it on first them pressing record get me GPS data. just pressing record starts recording without GPS data....
I hope they can correct this so the 7 works the sames as the 6 and the 5.