In a Thursday update, a community moderator named RokuEmmanuel-D stated that the company is “investigating the Disney Plus HDR content that was washed out after the recent update” and encouraged community members to provide details and examples, including what content is problematic, their TV model, and the software version they are using.

The initial comments only mentioned the issue occurring with Disney Plus on TCL TVs, where users noted that app menus and non-HDR content retain their normal appearance. However, one user provided comparative images from Disney Plus’s show Andor, shown on two different TVs, highlighting that normally vivid colors are appearing grayer than usual.

Later comments report the same problems with YouTube TV, Netflix, Apple TV Plus, Amazon Prime Video, and others. One said they saw the issue with their Hisense-branded Roku TV, rather than a TCL model. The same person reported HDR working fine over HDMI from their PS5, while another said the signal from their 4K Blu-Ray player looked good, implying the issue is limited to Roku streaming, rather than any deeper TV firmware issues. People in the thread said their TVs — Hisense and TCL — were on Roku software version 14.5.

Washed-out or flat colors can already be an issue when watching HDR content on a TV that’s not bright enough to produce a good HDR image — that was the reason I turned the feature off the old, cheap TCL Roku TV I once owned. But these reports describe something beyond that, with Roku producing desaturated, almost black-and-white images when HDR is on. It’s unclear how widespread the problem is, but there are recent Reddit threads that seem to fit the bill, mentioning grayish or black-and-white picture that doesn’t affect streaming app menus.

Roku didn’t immediately respond to The Verge’s request for comment.