Latest version of Glyphs 3 freezes when you interact with the main window after opening it in Sierra

I have to use an older mac for a few weeks and am currently trying to gt glyphs to run to work on some projects.

This mac is rnning 10.12.6, but I am unable to get past the “Check for updates automatically?” question as the program freezes once I interact with any of the windows.

Glyphs 2 works fine, but I am unable to open my .glyphs file in Glyphs 2.