there seems to be a problem with the *.po file when using Save and continue.
I changed the WP settings to German formal but the the string for “Please use the following link to return and complete this form from any computer.” is still German - not German formal. Even if i change the language to English, the form itself uses the correct english language file but the save and continue is still in german. Seems the save and continue is ignoring the selected language.
Translations generally only apply to new things (forms, fields, confirmations, notifications etc). Once the message is saved to the settings, you’ll need to customize it via the settings, in this case in the Form Settings > Confirmations area of the form for the onscreen save and continue confirmation message and in the Form Settings > Notifications area for the message included in the save and continue notification.