In older versions, there used to be a warning when you tried to export fonts where multiple exports would result in the same file names, overwriting each other.
In 3217, the warning doesn’t appear, but no fonts are exported either. Hard to find out what the problem is in this case …
Works for me. Can you send me your file?
Weird. I made a very simple test file, which triggers the bug. No warning message, no export. My original case had fileName parameters which produced identical filenames for some instances, also no warning and no export.
TestOverwrite.glyphs.zip (3.0 KB)