What is the biggest inconsistency / continuity error in King of the Hill in your opinion?

What are some of the biggest inconsistency/continuity errors in King of the Hill and your opinion? My biggest one involves the death of Cotton Hill. In One of the earlier seasons, there's a whole episode dedicated to Cotton getting a plot at the national cemetery. It's the same episode he helps Peggy recover after her skydiving accident, they dance on his supposed plot side at the end of the episode. Yet, in one of the later seasons we see Deedee dropping off Cotton's ashes for Hank to flush down the same toilet that General Patton used. Cotton fought so hard to get that plot at the cemetery for himself, even admitting to needing Peggy's help, but he gets cremated after his passing?? That always just drove me nuts lol. There's a handful of other inconsistencies I could list, but I would love to know what y'all think??