My team is attempting to officially ditch our other rendering tools and go exclusively with UE4 this year. So far we have a handful of projects completed and continue to learn, but also continue to encounter bugs or features who’s absence slows things down. These are some of the current obstacles my team is facing when rendering in UE4:
1.) If a Datasmith file is imported on any level besides the default, actors will not sync on re-import. You must manually select the root Datasmith node in the World Outliner and hit the "Update Actors from Scene button. This workaround gets the job done but this is a confusing bug.
2.) If you import a new datasmith file into UE4 and apply a new material to a static mesh actor, then delete this actor in Max and re-export/import your datasmith file, the actor is not deleted. This causes difficulty keeping our scenes synced between Max and UE4.
3.) Video files used as textures (TV screen content) don’t play back at the correct framerate when rendering with Sequencer. We have tons of TV screens in every area we render so this is a big bug for us.
Any word if fixes for these are in the pipeline?