FAC Fred Anton Corvest is a company founded by Frederic Corvest,
a software engineer with a passion for sound design, producing first-class virtual effects and instruments
FAC Plugins are Audio Unit Extension, or AuV3. It's the evolution of the Audio Units V2, presented by Apple at #WWDC15 and aim to be used on iOS, tvOS, and macOS by host apps and distributed via the App Store.
There is an issue if the current preset is set via the preset manager provided with FAC AuV3s: Cubasis will hang and freeze. This has already been discussed with Steinberg and they will provide a fix soon.
💡 Workaround: We can not hide the preset manager because as AuV3 plugin we do not receive the info that we are in Cubasis 2. So please, Cubasis 2 users, use the preset organiser provided within the host and do not use the one provided with FAC apps.
Seems that you have not read the warning before purchasing... See the screenshot below.
💡 Workaround: Write to the company of the host which is not compliant to beg for AuV3 support :)
It's probably the first time you use it, and the AuV3 is missing in Logic Pro X or available but surrounded by an orange exclamation mark
💡 Workaround: You have to check "AU3 Mode" in Logic Pro X/Plugin Manager
This is a weird bug in Logic Pro X, we have already notified Apple. Please do the same to get more chance for a fix.
💡 Workaround: Follow the procedure as described in the following video: LPX AuV3 Exclamation Mark Workaround