Your dad probably got the temporary guardianship; you must prepare an objection or at least go to the hearing and make an oral objection - but read...

It depends on what you requested and with responses filed the court may continue.

Nobody show up for the hearing on the RO - or maybe file a Request for Dismissal: https://www.courts.ca.gov/documents/civ110.pdf

Why would you need the PPA f you’ve settled the issue?

No - you are limited to whatever evidence you obtained through discovery at the hearing

…maybe an ex parte application to reset with explanation and notice of non-objection from other parent

It depends on what legal authority your aunt has and how she got it; regardless it isn’t as simple as just filing a form

You’ve settled spousal support - why do you need those documents. The court considers the case finished. Here’s a checklist for final docs:...

It’s not illegal but you have to assert your rights to stop it by filing as Atty Levine suggests. Here’s a link to...

The Child Support Services Dept will do this at no cost to you, but it will take months; you should be able to get a copy of your child’s social...