Crash induced by RTL languages was fixed upstream. I have updated Qt bindings used by us to the latest available state (Aug 6 2018). This state looks to correspond to qt-v1.5.0, but it wasn't tagged properly by Mapbox.

The current version (1.5.0) looks to have somewhat slower loading when the app is going from minimized to focused state, but I didn't find why. Cannot provide the changelog though, anyone interested can checkout commits from May to Aug 2018 at https://github.com/mapbox/mapbox-gl-...commits/master - there are plenty.