Resin warping on Creality LD-002R (big flat piece)

[Ronin]

Hi there! Maybe some of you long resin gurus will know why am i getting such bad warping on my prints, I will attach pictures below of how my settings look and my orientation and how and where it bends.

eager to learn and fix this as its deiving me crazy!

I tried different exposure , lift speeds , support offset , several other support options (adding more as you can see there are plenty) Every time warping happen on first 15-20%
I tried removing supports and curing, curing with supports, curing in cold water, like everything

I am using chitubox

Resin I tried was Prima creator light gray and anycubic standard gray. both have same results

supports.jpgwarp line.jpgwarp1.jpgwarp2.jpgchitu settings.jpg