I've been using the sketchup version more lately (it's amazing!) and have noticed that sometimes the model geometry doesn't fully update in Enscape per what's happening in Sketchup. For instance, sketchup has a feature where you can create groups/components that cut faces (for windows and doors usually). When you copy or duplicate these in sketchup, the new instances show up, but not the corresponding cuts. You have to fully close out and load a new window again for them to show up.
Similarly, sometimes when you modify the geometry of a face, it will suddenly dissapear in Enscape and turn black. Again, the only way to get it to reappear is to close out of Enscape and relaunch it (sometimes cutting and re-pasting will do the trick, though usually only if it's in a different location). Luckily the Sketchup version is generally much quicker than Revit, so it's not that big a hassle to restart, but it would still be better if those changes always carried through.