I have some feedback from Mapbox GL authors regarding J1 crashes. It was suggested to test with a very simple theme that just shows country borders on red background. Would J1 and Photon Q users test the last version of the demo app:

https://build.merproject.org/package...pbox-demo-sfos , choose your architecture, get build RPM

Please let me know whether the black box on the top left is still there and if you can make it crash.

@WebLyfe, for some unknown reason your message disappeared from the thread. Which link did you try? To get RPM, you have to go https://build.merproject.org/package...s/mapboxgl-qml, click on Repositories, choose the architecture and get RPM.