From USPTO site:
97 PUBTC Pubs Case Remand to TC390,952 - An allowed application may be returned to the Technology Center (TC) for additional work or clarification.
98 A.NA Amendment after Notice of Allowance (Rule 312)385,749 AA - When applicant files an amendment after the Notice of Allowance has been mailed but before the issue fee is paid, the amendment is not entered automatically. It may only be entered upon recommendation of a Primary Examiner. It will not be entered if it requires additional search or more than cursory review.
From a forum post in response to someone with the same transactions:
"Pubs remand is probably what we call a printer rush. That means something is wrong with the file that needs examiner input before it can issue. Most common I see is probably the examiner didn't properly consider an IDS, but there are many many things that can cause this so it's impossible to speculate. Maybe they didn't sign that an after final amendment was entered, or they put an invalid classification or drawing figure in, or a claim depends on itself, or they renumbered the claims in a way that doesn't make sense, could be lots of things. They often don't need your input and the examiner can just fix it.
Probably not necessary to call the examiner at this point because there's nothing for you to do currently. If the examiner needs your input rest assured they will call you. I think we get like 5 days to take care of these and supervisors are generally on the examiner's butt if they aren't done promptly. If a week+ goes by and you don't see anything happen maybe it's time to see what's going on."
