I've found a bug on main that I think is related to the recent patches about raw 
string objects.

Try this as Basic.bib:

@book{friends,
   title = {{{LaTeX}} and Friends},
   author = {van Dongen, M.R.C.},
   date = {2012},
   location = {Berlin},
   publisher = {Springer},
   doi = {10.1007/978-3-642-23816-1},
   isbn = {9783642238161}
}

And then this as basic.org:

# ----------

#+bibliography: Basic.bib
#+cite_export: basic plain numeric
[cite:@friends]
#+print_bibliography:

# ----------

Exporting to text, HTML or ODT works, but trying with LaTeX gives this error:

mapconcat: Wrong type argument: stringp, (raw nil #("van Dongen, M.R.C." 0 18 
(:parent #0)))


Thanks,


Bill

--
William Denton
https://www.miskatonic.org/
Librarian, artist and licensed private investigator.
Toronto, Canada
CO₂: 421.80 ppm (Mauna Loa Observatory, 2023-12-14)