Tags not changing

i have been folowing the instructions in the faq but when i save the tag it saves but dosnt changein the tag editor where you select the file!

any idea?

Which part of the FAQ are you talking about ?
This part https://docs.mp3tag.de/getting-started/first-steps/#saving-tags-to-files ?

Which version of Mp3tag are you using ? The current version is 2.44