Step 1:  Stick it on a shelf and come back to it after the IRS has issued guidance on last week's law eliminating APTC repayment for 2020 AND after Lacerte has updated their programming accordingly.

Step 2:  After completely step 1, come back and post here again.  We will have forgotten all about this as soon as it drops off page 1 of the community.

Rick

PS: I'm not in CA and don't have any of these but my understanding is the Fed uses 400% of FPL for "the math" and CA uses 600% of FPL.  That's likely why you're seeing such a stark difference.