i've also seen this - any DAW refused to load helix native and would become unresponsive. I fixed it by deleting the line 6 folder in `~/Library/Application Support` on os x. My guess is the preferences got messed up somehow. shame there is no feedback from helix when it gets into this bad state. warning that i have no idea what else is in that directory and you may end up deleting some other preferences. probably a good idea to back it up before removing.