My question involves court procedures for the state of: Louisiana

- secured creditor (SC) appealed a bankruptcy fee order to district court, proceeding IFP, because the trustee sought to distribute proceeds of the asset securing SC's claim to himself and his attorneys.
- trustee argued that the appeal was frivolous because SC's secured claim was satisfied and claims to have a cancelled promissory note. (trustee filed no objection to the claim in bankr. ct.)
- district court dismissed SC's appeal as frivolous - and denied IFP status to appeal its decision.
- appeal was docketed and SC's IFP affidavit was submitted to 5th circuit. SC was given 30 days to file IFP motion.
- meanwhile, trustee filed motion to dismiss appeal in 5th circuit.
- SC received copy of the motion a day after a reply was due. SC called the 5th cir. clerk and was told that as a pro se filer he had an automatic 30-day extension of time under the covid-19 order - making the due date 3 weeks after the IFP motion is due. So, SC decides to file a combined IFP motion and opposition because the same issues are involved - ie whether the appeal is frivolous.
- While preparing his combined IFP motion and opposition to dismissal motion, SC discovers that the "cancelled promissory note" entered into evidence by the trustee is a fake. SC drafts a motion to expand the record and for sanctions.
- three days before the IFP motion is due, the clerk informs SC that 30-day extension was NOT automatically applied and SC's appeal was dismissed (23 days after trustee's motion was filed).
-further, the mandate issued the same day as the order dismissing appeal.
- SC filed motion to reconsider and vacate which was denied.
-what if anything can be done after mandate BESIDES petitioning for SCOTUS writ?