Question about the deleted scene shot in a forest

I'm curious about that random scene in DR. BUTCHER where Peter and Lori are walking through a foggy forest and she falls into a pit.

In addition to the location clearly not being a tropical island, her hair is different, his hair is different, and their costumes are slightly different.

Does anyone know the story behind this inserted scene? Like, was it shot by Aquarius to pad out the running time or something? It's not in the original version of ZOMBI HOLOCAUST.

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