Anybody noticed that the series have 2 episodes cronologicaly incorrect?

The episode " Living Dolls" ep.19 ,season 5 , Where Samantha goes to the beauty school as a jornalist and meet there her pal from Brooklyn , is changed with, "Life's a Ditch " ep. 2 from season 6,Where they receive at their home her pal from Brooklyn and she acts as she had never had been a model, before,in the end she goes with Trish as a model to the beauty school.

If she was already in the beauty school in previous season makes no sense to never had been a model before in the next seson.

Great start for the milf Leah Remini in the who´s the Boss 80´s classic, at the end Mona is the Boss.

"Living Dolls" was not originally broadcast during Who's the Boss?'s initial network run on ABC. It was actually the original backdoor pilot for what would become the series Living Dolls. It wasn't aired until it was decided to include it in WTB's syndication package.

"Life's a Ditch" is actually meant to be the official and canonical backdoor pilot for Living Dolls as its series premiere followed the airing of that particular episode.

Should the "Living Dolls" episode be treated as official canon even though it never aired on ABC during Who's the Boss's first run? Or maybe if you accept the latter "Life's a Ditch" episode as a prequel to "Living Dolls".