Advertisements I've been using KMTTG forever. Can't even tell you how far back I started using it. So to my surprise today I went to run it, and it just didn't work. I can't figure out why. Nothing has changed here (that I did), it's just not running. Now I'm aware things change in December, but it should still be able to launch NOW. This is different - KMTTG is refusing to run. As I said, been using it for years, including the last 3.5 on the Mac I'm reporting from today. I've already tried reinstalling from a new zip download - no change macOS - Catalina 10.15.7 (current) Java - Java 8 Update 271 (current) kmttg - v2.4o (current/final) When I run it I get an error box that has a simple error saying the jar file can't run, but no details. It mentions something in the Java console, but there's nothing there. Error: imgur.com There's no errors or things I need to acknowledge in the security area of the mac Control panel. I'm at a loss.