APE tag hides ID3 tag

[ohrenkino]

@Dick_Harpees

How do I get both the APE tags and the MP3tag tags I wrote before not to be invisible?

You can't.
In MP3tag APE tags are displayed if present and selected to be read and all other tags are not displayed.
This is also documented:

Mpeg – Mp3tag Documentation

The workaround would be to use a replaygain program that writes the data to ID3 tags instead of APE tags.
Or use a program that copies the contents of ID3 tags to APE tags when creating new fields.