Horizontal white lines flickering while on my Xbox

Final update: after receiving my original Series X back from Microsoft (which still had the same exact problem), I sent it back and demanded a different unit. The new unit came last week--note that this is a refurbished console, not a new one--and it no longer has this issue. Everything is working flawlessly. I wanted to post this so that if some other unfortunate customer happens upon this thread and has the same problem, it seems as though it's likely a GPU issue that caused the issue in the first place, and the console needs to be fully replaced in order for it to function properly. I hope this helps someone out who has the same problem!

Thank you for the response. I will attempt this after work. I have already tried a power cycle, but have yet to try a factory reset. I’ll report back with the findings.

I’m still curious if anyone else has had this problem.

Update on the situation: I sent my console in, waited for two weeks, and received it back. Nothing has changed whatsoever. The exact same problem is still occurring. I cannot emphasize enough my frustration with this issue. Furthermore, each time I contact customer service, I speak with a different agent and have to start over again. It seems the customer service department and the service techs do not communicate based on the fact that this issue was clearly never tested for despite my being very specific about the problem. I’d like to know if there are any other channels to resolve the problem.

I have looked at the thread and I'll suggest you get the replacement as well. Sorry for the inconvenience

Okay, I am home from work. I did a power cycle, and the problem persisted. I also did a factory reset, and this didn’t work. Furthermore, I downloaded Gears 5 and the same issue is immediately apparent at the start screen of this game. I found another thread of 65 responses to the same issue (see link below). It seems nobody has had any luck without full console replacement. If there are other options, please let me know! For now I will send the console in for repair.

https://answers.microsoft.com/en-us/xbox/forum/all/xbox-series-x-graphics-issues/5606c82f-ece4-4db4-b814-a17c1b493e49