I just experienced this issue too and didn't see any resolutions, and I think I managed to figure it out. You have to go into settings --> Advanced Settings --> Display --> Screen Resolution --> Display Mode and change it to 4K2k-60hz
We had this problem as well. The colours were immediately washed out when we plugged in the streamer to a different tv. We corrected it by selecting settings —> advanced settings —> display —> screen resolution —> display mode and select 4k2k-60hz th...
