Making outlines compatible between Masters

Hello,

I’m practicing interpolation and am attempting to interpolate between the Normal and Bold weight of an existing font in Glyphs. Many of the letters contain incompatible outlines. I’ve attempted to ‘Correct Path Directions’ and ‘Tidy Up Paths’ in every incompatible letter, in addition to using mekkablue’s ‘All Anchors in All Layers.py’. If after none of those fix the issue, are there additional methods to correct these incompatibilities? If I see odd connections being made, can I manually correct them?

Example:

Thanks.

Notice that even though it appears you have the same number of nodes, some are not in the same relative position between masters. That needs to be fixed.

The two that are not closed in the lighter master. You need to be able to see that your self.

And there are a few unnecessary points. Read this, please:
https://www.glyphsapp.com/tutorials/drawing-good-paths