Invalid answer modal bug

Hi PeteRix1,

Thanks for reaching out!

I did a quick test to see how the Localization feature worked for the invalid prompt, and it looks like it is translating this correctly. Here is a screenshot of my test, showing what happens when I add a question slide to a new project, then translate everything to Spanish. 
 

It looks like the problem may be specific to your label set. Would you be willing to share a copy of your project file here or privately by opening a support case so we can do some tests to confirm the behavior? We'll delete it when we're done! Please include the language you are translating your courses into.