Clips recorded on series X are pitch black as you can see below. This was recorded during...

EA games were so bad for this. Every corner kick on FIFA, game clip recorded. Rank up on Battlefield 4, game clip recorded. For FIFA it was a major hassle because the whole thing covered up the pitch map!

If you're using Upload Studio on the Xbox One, it's very easy to record a voice over on your clips. When you boot up Upload Manager, select "Manage your clips" and select the clip as desired, and go back to the left where it will say "Edit in Upload Studio".
On this screen, you will see your clip on the right hand side, along with options on the left such as Change Type, Change Effect and Trim. Below that you will see "GAME DVR" which will have been your clip. In order to do a recording, you will need to plug
in a chat headset, or use the stereo headset adapter before the "Add Voice-Over" option will be highlighted and available for use. It's probably more than likely possible to use the Kinectmfor recording too, but I can't vouch for that since I don't own one.

Once you have hit record, your clip will play alongside as you record. Once you're done with the recording, either let it run, or stop the recording.

To preview what you have recorded with the microphone, simply press the X button to preview the clip with whatever you have recorded alongside it.

If you are unhappy with what you have recorded, simply choose "Clear Voice-Over" and you can start fresh.

I hope this has helped

if you recorded the clip by pressing the Xbox button then pressing X then you can upload it to One Drive by going to the Recent Captures on your Xbox, selecting the clip you want to upload then selecting See All Sharing Options

How i forgot, how i record gameplay with a xbox one as if its a camera? Not record that feature thing.

Series X + Samsung Portable SSD T5 1Tb can't be used to record game clips anymore (error code 0x80bd003c)

if you recorded the clip by pressing the Xbox button then pressing X then you can upload it to One Drive by going to the Recent Captures on your Xbox, selecting the clip you want to upload then selecting See All Sharing Options