QuarkXpress 2018 Hanging On Starting program

[dannyrome9]

iMac from Nov. 2017
High Sierra 10.13.5
Latest version of QuarkXpress 2018 (and 2017)
Trying to start either one results in hanging at starting program (spinning color wheel).
Have to force quit.
Deleted preferences and restarted. Same results.
Uninstalled 2018, restarted, reinstalled, restarted. Program worked for an hour. Quit. Next day some problems with starting.
Even submitting automatic crash report hangs.

Help.

[Matthias Guenther (Quark)]

Please send the crash report (if you get one) to our support.

You have 60-days of free support and it is quickest to get help, we call back and even remotely dial into your machine if needed.

http://support.quark.com/ or
support@quark.com

Thanks
Matthias

[dannyrome9]

Thanks Matthias.
In the process of dealing with customer support.
I'll post the results/resolution once that's achieved.

-Danny

[dannyrome9]

While I'm not sure if the problem has been fully resolved, through a back-and-forth with Tech Support, the issue seems to be with fonts. It's a bit of a process of elimination to determine which font is causing the problem, however, I think it came down to one particular file with a suspect font(s), that was causing the problem. Seems that in the process of trying to open the recovered file every time I forced quit and restarted, Xpress would get hung up. Went back to a previous version of the file using Time Machine and the recovered file seemed to be fine. Tech Support also suggested disabling Font Utilities and use Font Book (Mac) to validate fonts to help isolate potential problems. So far, so good.