@Kpolf
I kind of remember some issues with screensavers. Roku sometimes get confused with certain Screensavers and television models and gets "stuck" on wrong resolution. (kind of lines up with your issue that the last thing activated would be the screensaver and you are only seeing this upon startup.
Try using another Screensaver from the Roku defaults (like the Digital or Analog Clock or Aquatic Life) and see if issue remains.
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