For the sake of understanding what may have caused this issue…
After I followed all the steps posted in Easy Guide to Looney Tunes Golden Collection, all of my .m4v files had tag titles populated like this, “LOONEY TUNES GOLDEN COLLECTION VOLUME 6 DISC 3”. I wonder if Plex read the “Volume X Disc X” information in the title tag and automatically switched the Episode ordering from Airing Order to DVD Order.
