On this page: https://meta.wikimedia.org/w/index.php?title=Special:PageTranslation&target=Template%3AI18n%2FReports&do=mark, I'm seeing that I can't mark new strings for translations.
I do not have any underscores or slashes in the translation string indices. What are my doing wrong?
Impact
Any page with custom translation unit identifiers containing the letter n cannot be marked for translation.