I have a class 10 (128 GB) micro SD card in my Z2!!
When I try recording 4K videos to the SD card, it doesn't work properly! When I try to play the video it says "Cannot play video! Invalid URL" sometimes the whole video file is corrupted!!
I have recorded 4K videos on this SD card previously as well without any problem!!
This problem isn't there when recorded to the internal storage!!
Any idea why this happens??