Not sure how I got it to go away last time.
Might have gotten it to go away by deleting the scripts, causing an email delivery, THEN creating the scripts again.
Although I think my ideas are all flawed:
I can delete the scripts and recreate and recompile all in the same minute and I don't get errors.
I can cause the error to happen again by editing and recompiling one of the files, *whether or not in the same minute* and I do get the error.
This time around, deleting the files and recreating/recompiling them even without an email delivery in between seems to fix the error.
Might be unpredictable caching. Might be the error didn't go away last time I recreated due to different methods of creating the files. Who knows, I think I should give up and stop spamming the list with uneducated guesswork.