The bar won't start from where it left off. Check the speed of the bar when it starts. If it increases really fast, then it's just doing a file check from what was previously downloaded and start downloading where it left off. At this point, the bar will slow down and attempt to continue where it left off.
I'm trying to make downloads outside of 7H work, but file names can't be changed to have compatibility and load order features to work for them after importing into 7H.