Unable to export variable / ghost rlig feature

Glyphs
1

Hey there,
I am trying to export a variable font but am getting an error.

image

However, there is no rlig feature in the font.
But I also don’t understand how axis mapping (1-1) relates to this …
I’m confused

2

Do you have any alternate layers in your font?

3

Nope, no brackets layers or anything like that

4

Are you 100% sure? Glyphs only generates an rlig feature for alternate layers.

What happens when you run the following code:

for glyph in Font.glyphs:
    for layer in glyph.layers:
        if layer.isSpecialLayer:
            print("Glyph %s has a special layer." % glyph.name)
            break