So, I'm about to test out my Bothawui map. All is well until I get down to this certain part, halfway through the munge, where it is stuck: CreatShadowMesh(lod:0): Created hires shadow (30 verts 90 edges). Is there anything wrong with that? It's been stuck for ~5 minutes. Now it's stuck at _ReduceShadowMesh:. It's taking a lot longer than usual, despite having very few of anything in the map.

thats normal, it hapns when modelswith extensive number of polygons are munged, it may even take hours if you have many

All my map has are: Endor trees, an Ion Cannon, and two Hoth Bunkers. Is that a lot of polygons?

not really,
but dont worry, once the models are munged and you dont clean the whole map (and have to remunge everything) visualmunge will only munge the new and edited files, so it will be quicker