FSX-SE Rex 3D Skyforce Stopped Working

[Zatoichi 45]

I've had Rex for 10 days in which it's been working well.
Yesterday I click the shortcut and nothing happens. I open task mgr and see Rex is running as a process but not an app?
I've gone the usual route, did a repair from the installer, uninstalled, reinstalled but no change.
Any suggestions will be appreciated.
FSUIPC7 is installed.

[timest 472]

Hello,

For assistance, please submit a support ticket at https://rexaxis.com
 

[Zatoichi 45]

Done - thank you.