Mac M1 - Route Viewer is unresponsive on start with high CPU usage

[alex-wenzel]

I'm running Route Viewer on a Sonoma M1 Mac using the terminal command from #1023, mono /Applications/OpenBVE.app/Contents/Resources/RouteViewer.exe. I see a new window with the instructions in the top left to use F7 to open a route or F8 to access options. At this point, neither F7, F8, nor any other key appears to have any effect. In addition, the corresponding mono process uses around 100% CPU consistently until I quit the application. This behavior is also the same if I start Route Viewer from within the Tools menu in OpenBVE.

I've tried to find logging for Route Viewer, if any, but I can only find the log files for OpenBVE itself in ~/.config/openBVE/Settings. If Route Viewer outputs logs somewhere, I'd be happy to share those.

Versions MacOS: Sonoma 14.3.1, M1 chip OpenBVE: 1.11.0.6 Mono: 6.12.0.206