Thanks, Valerio, for the report, and for everyone's interest in this one.
Here's the deal.
The message in the XSL for a string without a translation got upgraded from
WARNING to BUG as part of a major overhaul of all the messaging coming from the
XSL and Python. My assistant's doing, but I did not catch it in a review. That
has been switched back.
https://github.com/PreTeXtBook/pretext/pull/3133
Then the CLI decides what to do with all these messages and how to report and
handle them. I dropped a few changes on Oscar as part of this overhaul and
maybe he wants to take a closer look (or perhaps all is fine). We distinguish
error, warning, and fallback from fatal, with only the latter resulting in no
(or busted) output.
@Oscar - do you think you can do a minor CLI release with the above fix so that
we do not alarm any more of our international friends?
Rob