I just purchased a TCL Roku 50" 55S525 and have noticed an issue that only occurs whenever I'm watching something through their streaming apps, like Netflix and YouTube.
Occasionally, when I am watching a program on Netflix, a line of pixels will be "stuck" on a previous frame/picture of whatever I'm watching and will create a visible horizontal line. It's like the line of pixels have failed to change to the next picture and it's perpetually stuck in an earlier picture. When I exit the program I'm watching and return to the Netflix menu, the line adjusts/disappears. This does not occur every time I use Netflix/watch something on Netflix, and I've seen this also occur on the YouTube app for Roku. I'm guessing this issue will also occur on other streaming apps for the Roku.
I do not see these lines when I am using my PS4 connected via HDMI.
I contacted customer support, who suggested a a factory reset, and that seemed to do the trick for a week. The issue recently occurred so I issued another factory reset, but now it feels like only a matter of time before the issue recurs. Has anyone else experienced this issue?
4/20/20 No updates yet, just wanted to add a photo of the issue that I posted in the comments.
5/7/20: I heard Roku TVs have updated their software to 9.3, will report back if I experience the issue under this software update. Please comment below if you continue to experience the issue under 9.3.
11/23/20: I discovered today that my TV has updated their Roku software to 9.4.0, an update that I've been told should address and fix the issue, which could mean I've had it for some time since I hadn't checked in a while. So far, no lines on streaming apps as of late. Comment below if you continue to experience the issue under 9.4.0.
Picture of the bar while watching Netflix. The bar is stuck on the Netflix logo opening shot for this episode of Tiger King, hence the bright neon colors.