I’m not sure. I can definitely duplicate the issue. I thought maybe both inline lists being tied to the same source sheet would be the issue (and probably is to some level), so I tried with 2 separate but identical relation columns that link the same two sheets together. Each list is using a different relation. The result is still that the “See All” layout is duplicated to both inline lists. Glide heavily relies on attaching layouts to sheets, so on one hand I can understand why it’s happening, but I would agree that it doesn’t seem correct.
@Mark do you have any thoughts if this is a bug or intended behavior to have two inline lists that share the same source sheet but the design in “See All” is shared among both inline lists?