No longer able to work from main folders

I used to be able to load all files from a main folder. Now I have to open the folder and click on internal folders (ie; Disc one) to get the flac files to appear in the Mp3tag . Any suggestions?

The Subfolders (Subdirectories) option must be enabled:

Is this a question about a Mac?
Then see also the changelog for Mp3tag 1.10.0

Added an option to include or exclude subfolders when loading files.