There are a very small number of reports of the loading bar getting stuck while booting up Macs/MacBooks running High Sierra (10.13) and Mojave (10.14) after installing:

• Focusrite Control
• Scarlett MixControl
• Saffire MixControl
• RedNet Control
• Novation Editors/Librarians

In these instances, reinstalling the operating system and then reinstalling our software has resulted in no problems whatsoever.

At present we are not aware of anything that's specific to our software that would be likely to cause problems like this so we are liaising with Apple to understand the root cause of the issue.

We will update this article as soon as we have any further information. 

In cases where this issue has occurred, we have been able to get systems running again by booting into Recovery Mode and running some Terminal commands.

If you do experience any problems please Contact Technical Support.