Bug Tracker?

I think you might benefit from a bug tracker, or if you do have one a more prominent link would help me find it. This isn't a feature request but on Chrome using MacOS when I change tabs then go back to the map, the tool is still working but the map itself renders as a black square. I have to make a change to the map to force a re-render. This is an x86 machine so it's a bit older but it's fully up to date.