Thank you! It's been a year or so since I've modded the game so I forgot to put it outside of Program Files. I also switched from using ModMerge to DLC Merger.
That said, I have to do one big facepalm right now because I had a previous version of SCS in my extracted mods folder for Project Infinity. After following your advice and replacing SCS with the up to date version, I was just now able to install the following mods successfully:
EEX, Bubs Spell Menu, BG1NPC, BG1 Unfinished Business, Item Revisions, Item Randomizer, Tweaks Anthology, Talents of Faerun, SCS.
DavidW if you read this, I just want to say that your amazing work on SCS has provided me and countless others with literally decades of joy playing this wonderful game. You are actually a godsend to this community. Can't wait to try Talents of Faerun. Thank you so much!