Glyphs 3: Scripts erroring out

Glyphs
1

When I run a script (like mekkablue > Variation Interpolator), it errors out (log provided below).

The version I am on is 3.4.1 (3436).

Not sure if its related but, I have also recently installed a trial version of Glyphs 4.

Here’s the python version I get (in Macro Panel):

3.11.9 (v3.11.9:de54cf5be3, Apr  2 2024, 07:12:50) [Clang 13.0.0 (clang-1300.0.29.30)]

Here’s the error I get:

3.11.9 (v3.11.9:de54cf5be3, Apr  2 2024, 07:12:50) [Clang 13.0.0 (clang-1300.0.29.30)]

⚠️ Script Error:

Traceback (most recent call last):
  File "Variation Interpolator.py", line 382, in VariationInterpolatorMain
    newGlyph.layers[thisMaster.id] = interpolateLayers(newGlyph, layerA, layerB, interpolationFactor, thisFont)
                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "Variation Interpolator.py", line 107, in interpolateLayers
    newLayer = newGlyph._interpolateLayers_interpolation_scale_masters_decompose_font_error_(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'GSGlyph' object has no attribute '_interpolateLayers_interpolation_scale_masters_decompose_font_error_'


Variation Interpolator Error: 'GSGlyph' object has no attribute '_interpolateLayers_interpolation_scale_masters_decompose_font_error_'
Traceback (most recent call last):
  File "Variation Interpolator.py", line 453, in VariationInterpolatorMain
    raise e
  File "Variation Interpolator.py", line 382, in VariationInterpolatorMain
    newGlyph.layers[thisMaster.id] = interpolateLayers(newGlyph, layerA, layerB, interpolationFactor, thisFont)
                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "Variation Interpolator.py", line 107, in interpolateLayers
    newLayer = newGlyph._interpolateLayers_interpolation_scale_masters_decompose_font_error_(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'GSGlyph' object has no attribute '_interpolateLayers_interpolation_scale_masters_decompose_font_error_'
2

I fixed it.

3

Thank you!