Rollback CrystalSky? Pro Res won't work after CrystalSky update

[spidernd]

Hi, I'm having an issue with my Inspire 2. My crystalsky monitor auto updated the DJI Go apps, and now the crystalsky won't see my Pro Res license. My old Ipad mini still has the same old software, and the Pro Res license works when I use that. Is there a way to delete the DJI Go 4 App with a Mac and reinstall the old version? Or do I have to reactivate the pro res license again with the newly updated DJI GO app?

I don't want to install new update firmware on the copter itself yet, I have a job tomorrow and can't risk something going wrong, as it so often does, with DJI's firmware updates.

Thanks!