Unreal Engine Issues

Mac Intel - Sun light is exploding in the viewport

No camera Motion Blur in PT

In Path tracer, the Sun disk in the Twinmotion Dynamic sky does not produce the Bloom, Lens flare and Lens dirt effects.

Note that it works when using the old sun intensity (25) instead of the 100,000 value. Also, reducing the scattering in the sky will bring back the bloom. ...