where did you get that figure ???..
No doubt you have a LL black Blaster and a LL saber, and most surely a LL Luke Jedi Bespin from the imperio contraataca production.
Its a very long story, I dont know where to start but will try it to make it really short .
Back in the day we only had 2 interviews with LL ex-employees saying that the LL imperio line was totally and fully produced by LL with HK moulds. (That was all the info we had)
Many theories were around in how they were produced but for some reason the statements of the ex-employees sounded crazy for some "collectors " or non valid and they begin to spread misinformation.
So going back to your figure, luke bespin and leia bespin are the only 2 figures out of 10 from the LL imperio line that hasnt been "found", some years ago Julio Arreola show to the world his magnificent collection of the LL imperio line, but he only got 8 of 10, in those days many collectors claim they were fake (even the so called LL "experts") , but others collectors saw that they had the same figures but they didnt knew where they came from.
The years have pass since that day and know we know a ton more of that line and how they were produced.
In the last 3 years A friend of mine and myself have interviewed around 10 LL ex-employees some of them were directly involved in the LL imperio production line (Chief of Toy engineering , 2 moulds supervisors, 2 art supervisors) and have corroborated the fact that LL fully produce the Imperio line with HK moulds (we actually know the brand of the moulds that kader, unitoy and smile used), it was told to us that the imperio line used the same exact plastic formula as kenner to do them but it was until the ROTJ that LL used the same plastic brand that kenner used (Plastic brand edited) BUT the differences we find are located in the paint details as LL used a domestic brand. (Sayer-Lack)
Its amazing that your Luke has the same problem as the LL imperio snowtroopers, they grew a kind of fungus in the plastic . I will try to post some links to the FB page of the LL imperio contraataca . (Its in spanish), but im sure you will find very interesting information.