over exposure on consecutive renders

Rendering out a scene, using render current frame which opens V-ray frame buffer. The first time it renders, it looks the way it should, I make a change and hit render current frame again and it becomes over exposed, If I do it again it becomes even brighter, near white. It is like it is not clearing the cache. If I reset the frame buffer it goes back to normal. Closed and reopned and restarted, keeps happening.
Maya 2022 on windows.

Do you have auto exposure on?

What kind of changes are you making? Does it happen on every scene? If yes, could you record a video reproduction of the issue? If not, could you send the particular scene (or attach it here) via the contact form? Address it to me in the subject and include a link to this thread in the message.