I can clearly remember receiving a vc jawa (it was the third figure I got) I have no recollection what card it came on, but since I still have my original figures, and 80% of them have 'hong kong' stamps, I would presume that most of the figures I have came from 'kenner' cards.
I believe that a lot of peoples arguments of them having a palitoy vc jawa, is based on them having the figure, and merely presuming it came from a palitoy card.
I am also open to the idea that unsold figures or figures on damaged cards, on imported kenner cards, could have been returned to palitoy with other figures, and recarded.
Its also not a complete stretch of one's imagination to consider that an unused palitoy jawa cardback has surfaced, and had a bubble and figure from a kenner card attached to it, it's very easy to get a bubble from a card and keep the waffle pattern.
I belive that 3 palitoy vc jawas have surfaced, or possibly two, with one being sold twice? In both cases, I, and other collectors have issues with the provenance of the cards.
that being said, just because a piece shouldnt exhist, doesnt mean that it didnt, just look at the palitoy rf fett, for a similar case.