Hinting with OS Catalina

Just updated my MacBook to OS Catalina and now every time I attempt to create a hint, Glyphs crashes

Can you try the latest cutting edge version? And are you doing TrueType or PostScript hints?

The issue is with the latest version. And PostScript sorry

What version of Glyphs do you have?

2.6.4 - i’ve checked for updates in the programme and says it’s the latest

Please activate “Show Cutting Edge versions” in Preferences > Updates.

Just installed the update and still closes when I create or edit a hint