Hello,
After every update, you need to synchronize translation – https://xstore.helpscoutdocs.com/article/103-translation-files-update (it was done already).
Sometimes new strings are added, and only after synchronization, you’ll be able to translate new strings or strings that were changed. Not always, but some strings can be missing after the sync and you need to find and translate them one more time, this is independent of us and relates to WP functionality.
Please try to find and translate mentioned strings by yourself for WC and XStore. Let us know if any further assistance will be needed.
Regards