just recently bought an Optoma HD29HLV projector.
Works really well BUT when we're watching series which we chromecast from my phone, there are some funny multicolored flashes occasionnally on the screen (which we bought at the same time (brand : celexon)).
I am at a loss to know is this is due to the screen ? the projector ? and if so if we somebody has any idea what setting to change ? These multicolored flashes appear mostly when the picture is white or bright. Never on dark colors.

If anybody has any idea, thanks !