Deductions & credits

Hi, sorry to poke my head into the conversation, but I am in a similar situation, though slightly different.

 

I just filed for my parents, MFJ, they have <$18k SS benefits combined and they have no other taxable income other than $130 in taxable interest from banks. I filed theirs as 'someone is able to claim them as dependent', and my filing is rejected. According to the test, since they are MFJ, I technically cannot claim them, however, everything else holds true. What is the best course of action in this case I support their day-to-day. (Food, utilities, etc.) Should I leave their submission alone and mail mine in since it has already been rejected once and hope they are seeing what I am trying to accomplish since we only filed since my dad has a lot of losses from stocks and I'm told I have to file due to this fact?

 

Or should I amend their 2022 submission, and submit new separate filings as MFS so I can claim both my parents on my filing, or do they not qualify at all and file mine without them as dependents, and amend their current filing as no one will be claiming them?