I recently updated one of my Macs to Mojave and loaded GPredict from MacPorts. I use GPredict mostly on my laptop but this report is about on my desktop Mac, the problem does not happen on the laptop. I have been using GPredict on my various Macs for several years and have not seen this before.
When I go to configure a module, properties, module properties, map view, select map - the app crashes without any alerts.
Mac OS 10.14.6
running under emulation with XQuartz.