Alright, I dumped a bunch of already downloaded files (some of which are not available on Nexus :( ) into my mods folder, switched from FNV to FO4 and back to FNV. I then clicked "Fix missing or outdated download IDs". This went well (except, of course, for the files that are not available). I then proceeded to try to install one of the mods and generated the following trace log
Alright, I dumped a bunch of already downloaded files (some of which are not available on Nexus :( ) into my mods folder, switched from FNV to FO4 and back to FNV. I then clicked "Fix missing or outdated download IDs". This went well (except, of course, for the files that are not available). I then proceeded to try to install one of the mods and generated the following trace log
TraceLog20160731223719.txt
Restarting NMM showed that the mod had installed (I uninstalled and re-installed just in case).