Continuity mistake: When Thacker is killed, blood splatters on his campaign posters resting against the couch. When security breaks in and shoots Sturges, the blood on the posters is gone.
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Beyond the Alcove or: How I Learned to Stop Worrying and Love Klaus - S17-E7
Continuity mistake: When Francine is arrested for being a menace, one of the police officers does not have a badge over his shirt pocket, but after Francine vanishes in the cloud of smoke, a badge suddenly appears on the shirt. (00:16:35)
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The Fast and the Spurious - S17-E13
Continuity mistake: When future Roger announces his upgraded seatbelts, the way some of the double seatbelt straps are crisscrossed changes in following shots. (00:16:55)
Chosen answer: It is just the decision of the creators to do so.
MasterOfAll