That might be the problem - AGExtEditor.cfg is empty. I don't see a confignode is empty in my most recent output, but I did disable/delete AGX so I could see what else the log would spit out, and it's (mostly) error free. Should I delete the file and have AGX re-create it? Interesting that once I deleted AGX, the commands I wanted (ie, 1 for main engines toggle, 5 for science collection) appeared and worked under the stock actions. So AGX was writing them in since I didn't use action groups until AGX was installed, but was unable to read or do anything with them.