Per the tutorial, I sorted the lopoly objects and hipoly objects into collections so that no objects were intersecting. Jonathan joined lopoly objects into a single object inside of each collection but that wasnt done for the hipoly objects.
When I was baking the normal map, if you leave all of the hipoly objects separate, the texture bake progress bar goes from 0 to 100% and then starts over. It does this multiple times. Im guessing its baking the normal map for each hipoly object. If you join all of the hipoly objects into one object in each collection, the texture bake progress bar goes from 0 to 100% once and thats it.
I’m still getting an issue where the progress bar just sits at 0% for a long long time, but this issue exists for both situations so its probably a different issue, unrelated to whether I join all of the hipoly objects into one for each collection. Not sure what thats about. (sorry for the long winded post)