Samsung QN90A local dimming issue

Playing from Windows 11 PC to Samsung QN90A 65 inch.
You can see the image flickering at the start (this is not video compression artifacts), then when the menu is raised it becomes stable but there is still a distortion at the edges of the cyan rectangle.
Once local dimming is set to 'low' the issue resolves completely.
The problem occurs during gameplay on some games and can be distracting. I'm sure many people won't mind, but for enthusiasts and videophiles it is probably a deal breaker.
HDR10 calibration files available here. Just pick any coloured pattern in a 10% window and you should get the same result.

[@yassoplay123]

Hi man I have blooming in my qn90b how can I fix it plz

[@b0nz0beavis]

Not sure. Probably try AVForums Samsung owners thread. The fix for QN90A is to put local dimming to the lowest setting. The QN90B might require a different fix. Good luck!

[@teresareed6580]

Will Samsung ever fix this with an update??

[@b0nz0beavis]

I don’t believe so. From reports it is much less of an issue, or competely resolved, on some 2022 model Samsung QLEDs.