Final Cut Pro 10.2.3 refuses to launch

Today FCPX 10.2.3 got stuck on opening, displaying only an empty splash window and not loading anything... Frustrating.

Some users have reported that Audio Components can be creating such a problem when FCP does not start.

So I proceeded by elimination: pulling recently installed AUs from my Plug-Ins folder (in BootHD/Library/Audio/Plug-Ins/Components) to see if it helped.

Indeed I found my culprit: and audio component I installed a few weeks ago: "MIGIC.component."  After removing it, FCP started no problem.