Can't cite multiple sources with biblatex, autocites & autopunct

[Zac E]

Org-Cite does not appear to respect the biblatex package’s autopunct option 
when citing more than one source and exporting from .org to .pdf via .tex. The 
org exporter inserts a \relax command after the \autocites command, preventing 
the swapping of citation and punctuation (period), as should otherwise be 
enabled by the autopunct option. If I try to manually swap the punctuation and 
citation, LaTeX removes the space before the next sentence, so the use of 
autopunct is necessary.

The relevant part of my header looks like:
#+latex_header: \usepackage[american]{babel}
#+latex_header: \usepackage[autopunct,style=american]{csquotes}
#+latex_header: 
\usepackage[notes,autopunct=true,backend=biber]{biblatex-chicago}

This behavior has been consistent for me across different documents, and the 
only common denominator is the presence of multiple sources. An identical 
set-up in LaTeX does not produce this behavior. Has anyone experienced this 
bug? I could not find any other discussions of this issue. Does anyone have any 
suggestions? Thank you.