I’m using fldigi v4.0.18 WITHOUT flrig (that was often a headache) with an Icom-7300. It has worked fine on my MacBook Air (Mid 2012) on the previous macOS. This is the first time I fired it up with macOS Mojave 10.14.1. It will run for a while decoding, lock up and then some times it will start working again. It also locks up when transmitting. Other times it will not respond and I had had to force quit and restart. No other software is running. Rebooting the MacBook did not help. Any suggestions?