Hello.
My latest watchface X-Face - https://apps.garmin.com/en-EN/apps/0d3063ab-ea34-459a-85b3-8c8abfc77afb - crashes Mac Garmin Express v6.7.0 when settings screen of watchface is being opened.
X-Face has a lot of possible settings, maybe thats the problem.
Settings screen on mobile app and in eclipse/simulator work.