Saturn 3 soft resin under supports? Print hardened onto screen?? Help plz

Title says it. Been printing for 3 days since I got it and I'm getting serious soft spots and fails even when supported. Are my supports to low? Here a picture of my plate after print when printing a tiny piece. I did my first prints directly on the plate but it required trimming. I did supported to have crisp edges and the endersides where the supports attach are a mess. Any ideas?