Incomplete translation

I have added a source json file and 7 other languages. I used the MT option to translate the json file in the 7 languages and I can see the status is 100% but when I download the files I can see that not everything is translated.

Open Editor, check some strings, maybe they had a lot of tags and pre-translate didn’t pick the up.

maybe you also have some hidden stings that are not translated, or havent build file for long time?