Cheeky little thing. It almost pranked you.
But yes, i had this before. I always restart first to see if it solves the issue. Few times i had to pull out the battery to make it work, too.
During last weekend it stopped recording randomly, i didnt notice and i clicked upper button to stop recording (i had it on chest mount, didnt check the status) which in fact started another video, and continued to shoot for full hour until the battery died.
I dont shoot quick action so i dont realy care, but it is unfortunate.
No update was released in a long time now and i guess no more updates will come, as we know Gopro they are probably working 110% on Hero8 and already forgot that something like hero7 exists.
Gopro Hero 7 Black
Gopro Hero 3 Black
Previously: Gopro Hero 5 Black / Gopro Hero 3+ Silver / Feiyu G5 gimbal / Xiaomi Mijia 4k