Thank you for reaching out to us.
I would love to help you with this topic.
When translation file strings are not kicking in, it is usually caused by one of the following things:
Your translation files are not up to date
You are using some customized translation files that have been placed in the /wp-content/languages/ or /wp-content/languages/plugins/ folder. These might not be updated and will override any other file.
The strings are translated, but are considered “fuzzy”
In the first 2 cases, the solution is to update your translation files using the pot file. You can do this by using the Poedit software and heading to Catalog > Update from pot file.
In the last case, you will need to make them “unfuzzy” using Poedit.
I would still check into the above solutions, but since you are using Loco Translate, you might also find that you simply have not translated the strings in question.
They will look like “All %s” and “Previous %s”.
Finally, remember that some of these strings are stored in the Events Calendar language files, but others are stored in the Events Calendar Pro’s language files.