Exported IFC out of Sketchup and it shows it as hollow in Trimble Connect Viewer. I tried exporting it a bunch of different ways. Copied and pasted into a new file. Checked and unchecked all the IFC options. The "ImportPluginLog > Desciption: Element not added due to existing guid." Is it me? Haven't had this problem before when exporting. Do I need to erase the cache?