Lnum automatic creation not working v2.5b (1073)

I have old style figures in the Unicode slots, glyphs with .lf suffix in addition. Adding the lnum feature and clicking ‘create automatically’ makes the feature disappear.

Maybe it could not measure the outlines (for determining the OSF state). Can you send me the file?

It needs to measure something for the simplest GSUB replacement?!

Indeed. It failed because some of the glyphs were empts (without outline or component). This begs the question: what’s the purpose of such hyper-sensitivity?

Because the default figures must be measured. Otherwise the app has no means to know that you intend them for old-style figures.