Mine was doing the same thing [only worse] I would contact Sonders, they sent me a new display and that was a big improvement but occasionally I still have a shut down.
"Hi Christopher,
We’ve got great news about the estimated shipping date for your SONDORS Rockstar.
We’re still on track for estimated shipping the week of May 24th - 28th"
I was hoping to have it by Spring.......I love it when a plan comes together. 👍