Why do DVDs start and instantly stop after switching audio/video decoders?

When playing and stopping DVDs, Zoom Player by default remembers the last playback location as a DVD Bookmark file under the Zoom Player "DVD-Bookmarks" sub-directory. When switching decoding filters, it may prevent this bookmark from loading properly, so if this case occurs, locate the DVD Bookmark sub-directory pertaining to the disc you are trying to play and erase it.