This seems to be a common problem these days.
The USDC which houses our LoR case jacket has taken to fudging the filing of our latest documents, at the same time that the judge who was assigned to the case worked up the ORDER to dismiss the case.

By fudging I mean documents filed and visible on the docket on PACER, but no electronic file markings along the bottom edge of the pages; clerk tapes self-adhesive return envelopes with little pieces of clear tape only, ignoring the self-adhesive feature; one document returned to us in a torn, taped-up envelope and without a FILED stamp.