LG Ultrafine 4K display has developed a blue tint

I have an LG Ultrafine 4K display. It is 3 or 4 years old. It cost more than i would usually spend on a monitor but i liked it and it seemed to be worth it. However recently it suddenly developed a blue tint or cast. I use it with a 2020 13" MacBook Pro. I tried connecting it to my wife's 2023 14" MacBook Pro and same thing. So i am fairly sure it is the monitor rather than my laptop or OS.

I have attached a photo for reference. You can clearly see the LG Ultrafine 4K on the left has a strong blue cast across everything.

Has anyone experienced a similar problem? Is it repairable?

Would be very interested to know. Kind regards Paul