Prints warped after curing

I printed some parts out on the form 2 printer using Grey pro 4 resin and after they cured, they warped so they were useless. I did end up mixing some newer and older resin because I had to clean out the tray and didn’t realize it was an older bottle. Attached are two of the prints that warped as well as the setup in preform. Any help would be greatly appreciated.

How did you cure them?

Did you leave them on the supports for curing, or peel them off first?

What support density did you use?

I cured them using a UV curer I think. The supports were removed and set to 1.00. This hasn’t happened before.

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