rendered with CC imported to VFB but exposure is missmatched

I have vray, and used CC for rendering.
I got the rendering, and exr.
then I wanted to update a part of the image on my PC using render region, but the exposure of the render region is different from the EXR output.
How do I match the exposure on my PC to what the CC gave as output. I am using all the render settings the same as when I uploaded the image to CC.