Are you using Vortex?
Yes, sorry thought that would be assumed in the Vortex support section, but that's what I get for assuming. The version number is 1.3.13 and I haven't needed to use any other supplementary programs like LOOT so they're all managed through Vortex.
The reason I asked is because we get a TON of support questions in here for NMM, MO2, Skyrim, Oblivion, Fallout 4 etc, that have nothing to do with Vortex, so it's kind of standard operating procedure to ask now, if somebody doesn't say which mod manager they're using.