Regarding the Chest Bug, does that always happen with these Mods installed?
If so, try removing the Mods one by one to identify which Mod causes that error.
I played around a bit and found that sometimes the chests render and sometimes they don't...
If I see them in the replay viewer then when I try to render a camera path the chests don't appear in the preview. This works the other way round as well whether I have other mods or not.
I also used the same setting for rendering the camera path every time.