Not working on Android 6.0

I'm running the latest version 2.6.6.2 and it won't open. It just freezes, and yes I did reboot after I installed it. I have a nexus 7 2013 running Android 6.0.

edit - So I finally got it to work, but it seems that if I install the pro key it will freeze when the app opens. Otherwise it works fine.

You can first clear out the cache and then install the new version.  

The latest version is here:
https://soundabout.forumotion.com/f8-download-beta-versions

1) Go into phone settings
2) Press on apps
3) Scroll to SoundAbout, and press it.
4) Press clear cache, clear data, force stop
5) Install the new version and restart the phone.

So far all good. Latest beta totally works on Nexus 5 with Marshmallow! Bluetooth issues are resolved on my end.
Phone forced routing works for hangouts calls to speaker at last. As mentioned in my prior posts, Hangouts has some interesting interactions with SA and Marshmallow preview et al, actually getting media audio to the speaker in a phone with a stuck on headphone jack, but just for a fraction of a second when ending a call. Prior to 2.6.6.4 beta, you could not affect hangouts audio output with SA. Now it works, but you can't make a second change so you're stuck on speaker. Note that the ignore headset feature is restored with Android 6.0 as of SA 2.6.6.2
2.6.6.4 FTW!! Thank you!!!

ps, Nexus 5X not arriving until Tues or Wed, and SA has already improved the N5s end of life greatly

Great news! Thank you.