@kikoly have answer for this also?
I'm facing this issue very frequently that camera hangs and then also loses the recorded video or the clicked picture and then you have to redo the whole thing. The SD card I'm using is easily capable of handling any such tasks as it's UHS grade 3 card from samsung and is smoothly giving me 90+ MBPS file transfer speed. This is a software glitch, so fix it as it's very annoying and hinders in important tasks.
Asus 6z (Zenfone 6)