Xbox Clips appear dark and is hard to see the content.

Hey there

Are you playing on xbox one S or X with HDR ? HDR can make screenshots very dark or appear too be dark try turning off the HDR You can still capture in 4k without HDR you can also still capture in HDR and toggle the HDR off and on when you view the game
clip for each clip. Settings Preferences broadcast and capture

Something else too also mention is that the graphics in sea of thevies are very dark. For example the screenshot you took is at night and in a storm. The game makes it hard too see in this case on purpose has it isnt ment too be easy too see when sailing
at night in a storm. So it isnt really a issue just the fact that yes its dark because thats how its been intented too be

After hard resetting my xbox one (holding down the power button on the console for 10 seconds) and rebooting, I am able to record clips again. The clips I had previously recorded remain lost, though.

And, just in case anyone else runs into this, I was not able to see the clips in Smartglass, either (and still can't see the missing clips), and I was set to Appear Online.

Dark Souls is new is really hard and have a lot of horror content.

What happens when you try and record a clip? Does an error message appear?

Have you tried doing a hard reset of your console by holding down the power button for ten seconds before releasing and pressing the power button again?

No errors. Just notification “Clip is being prepared” and no notification “Your clip is ready”. In gallery there are no clips. Yes, I have tried hard reset.

If they blocked you their profile should appear blank and you wouldn't be able to see their friends list or clips. They would appear as offline. If you can see their profile they might just be appearing offline.