This has come up a couple of times and it seems better to change the implementation from blender/blender-addons@f1dd37b8ac [which only exported edge creases when a subd modifier with enabled `Use Creases` option was present] in a way that these are always exported (if present). Also took the liberty to rename the variable name for the layer to correspond to "crease". Thx @mont29 for handholding on this one! Fixes #131284 Pull Request: https://projects.blender.org/blender/blender/pulls/131419