I've tried uninstalling and reinstalling the latest production version of OpenCPN
on my Mac (Mojave 10.14.5, MacPro, Mid 2014, 16gig ram) but both times, the bottom 20% of the chart shows up as black. There are tide indicators appearing above the black that seem out of context with the visible part of the chart showing. Am I special, or does it just not work
at all on this OS?