Thanks for the suggestions. I have been printing with this same resin on the PDMS vat for awhile with no problems. So I believe I have the resin settings correct.
I switched to PM reset of 50 and Z reset of 1816 as written on the vat, with the result that only two of the nine models printed, and only one of those without errors. The rest did not form much beyond the first few layers (see photo). (For reference, the print in the first post had four successful prints out of nine.)
I haven’t noticed that it is an issue to one side or the other, only that the center line (drawn from front of build plate to back) seems the most safe place to place a print.
I’m about ready to go back to the PDMS vat, though that is sub-optimal since I intend to use this for production, and those vats are consumable, which obviously quickly adds to the end product cost.