Problem with Mekkablue’s “Dekink Master Layers” script


When I try to run the “Dekink Master Layers” script I get the error message: “Dekink Error. Could not find any other layers in this glyph for this interpolation.”
I have 6 masters in this file, all paths are compatible, so I don’t know why it can’t find compatible layers.
I’m running the latest cutting edge version and made sure the scripts are up to date.

What am I doing wrong here?