Sorry, been busy and have not checked XDA for awhile. It is the MultiROM part that I can't seem to remove. I have installed newer versions of TWRP as well as multiple new ROMs, but can't get rid of it.
Sent from my LG-E970 using XDA Premium HD app
Dirty Unicorns (the version built by mathsz) works as the internal ROM, and his XenonHD build works as a secondary ROM. Presumably, Dirty Unicorns also works as a secondary ROM.