Oh god I have that too and it's so fucking annoying. Afaik it's since 1.22.
Plus, I experienced in some vehicles (the ones with greenish thermal imaging, the ones with black/white seem to be ok) there is something majorly broken with the brightness or contrast?
Because the thermal imaging is so damn bright, I see nothing but green, no chance to see a bit of the landscape and even the hot targets which naturally appear in lighter green are hard to spot because the whole imagine is so bright.
(I changed absolutely nothing with my graphic settings, all this appeared with 1.22.)
Note: I need to test if changing the HDR thingy is working for me, too. Hopefully it does.