Hi, Geoff!
Sorry, it didn’t work.
I deleted my updated files from wp-content/languages/plugins and used the files you provided and placed them in the plugins’ catalogs (in wp-content/plugins/events-calendar-pro/lang and wp-content/plugins/the-events-calendar/lang) but it didn’t help.
Since I have used personally updated files, it also took away my changes, naturally.
I also noted that these files have much fewer strings than the ones I use (which are the ones that was included in the latest release, but updated by me).
Can you find anything else that I can change?
Thanks!