I’ll start with a quick summary of the macOS stuck progress bar situation. UPDATE! This issue is fixed in both the Monterey 12.1 and Big Sur 11.6.2 Full installer. In certain situations, the upgrade will fail and then get stuck with a neverending progress bar.

MacOS Big Sur currently has an upgrade issue. If software from multiple developers has been installed, the System & Privacy pane may display a more generic message that reads 'some system software was blocked from loading.' In this case, after clicking Allow a list will appear and the software from each developer can be allowed individually.MacOS Mojave or Catalina to Big Sur Upgrade Progress Bar Stuck Fix.If the Allow button is not present after restarting, reinstall the UAD software. To show the button again if 30 minutes have passed, restart the computer. The Allow button is present for 30 minutes after UAD software installation.Click Allow (at lower right of General pane) within 30 minutes of UAD installation.Īllowing UAD software in System Preferences after UAD installation restart.Click Security & Privacy in the System Preferences window.

After restarting, open System Preferences (from Apple Menu at top left corner of display).Download and install the latest UAD software.If this step is not done, UAD devices are not recognized and the UAD Meter displays “Driver Not Installed Correctly” in red text. Allow UAD SoftwareĪfter installing UAD software, the software must be manually allowed in System Preferences>Security & Privacy within 30 minutes of installation. Configuration steps that are unique to High Sierra are detailed in this article. With High Sierra, OS system security requires UAD software to be manually allowed for proper operation. To use UAD v9.15 or higher, update to a newer version of macOS.

Older versions are available in the UAD software archives. UAD v9.4 through UAD v9.14.5 are compatible with macOS High Sierra.

Spark and UADx plug-ins are incompatible with macOS High Sierra.

LUNA Recording System is not compatible with macOS High Sierra.

With UAD-2 and Apollo hardware, UAD software v9.4 through v9.14.5 is tested and compatible with macOS High Sierra.

Note: If using a different version of macOS, see the Latest OS Compatibility article.

Mac version 10.13