TrueType instructions Variable Export Error

Hi guys,
I’m getting a TrueType instructions error while exporting a variable font. I don’t have any custom parameters in the masters. Not sure how to solve this.

Do you have any tips? [Using Glyphs 2.6.5 (1342)]

Screenshot 2021-02-02 at 16.05.25

Can you try the latest version of Glyphs 2?

I did, just now. I get the same error/message.

Can you check the glyph “m” if there are any TT hints that are not connected to nodes (in the lower left)?

I have no TT hints in there. I’ve sent you the file in case you have a moment. Thank you!