"Starting Local Machine" stuck macOS 10.13.4 LBF 2.2.4

I’ve read dozens of threads but haven’t found one that matches my situation.

Seemingly out of the blue, Local hangs on “Starting Local Machine”. Never was a problem until a few days ago.

Local can’t seem to get past starting VirtualBox. Has anyone had a similar experince who may be able to offer some guidance?

macOs 10.13.4
Local by Flywheel: 2.2.4
VirtualBox 5.2.8

local-by-flywheel.log (16.2 KB)

Update: When I tried to start VirtualBox on its own, I got the error:

Effective UID is not root (euid=501 egid=20 uid=501 gid=20) (rc=-10)
**Please try reinstalling VirtualBox. **
where: SUPR3HardenedMain what: 2 VERR_PERMISSION_DENIED (-10) - Permission denied.

A full uninstall and reinstall of VirtualBox did the trick.