I’m having the same issue - how did you get the wildcard characters to work? I set path + file to a wildcards.txt, but no matter what I type in that file, it’s ignored and all characters are imported.
When typing e.g. “abc” directly into the “chars” field (instead of using a wildcards.txt), it works, and only these three characters are imported. If I paste some chinese characters in there though, they are not imported (only squares with X in them). Though the font definitely supports them, as they are displayed when I paste them in the preview text input field when setting the font to runtime instead of offline.
I just set the path field to the path of the .txt and the file field to the name of it (so let’s say for example my wildard is in C:Desktop\Project\example.txt, then path = “C:Desktop\Project” and file = “example.txt”) and after that I wrote on the .txt the chinese words I wanted to use on my project (I did it this way because looks like you can repeat characters and it only imports them once) and it worked.