Cannot find yellow and purple spelunkers

[Crowley]

I've been playing the game a bunch and I have managed to unlock all spelunkers except for four. Two of the missing ones are the viking and eskimo, which I see the update addressed. Now to just wait for GOG to update their download of the game. However, I have also not found the yellow or purple spelunkers anywhere. Is there perhaps a similar issue causing them to not appear?

[Bor]

I can't find the purple one either, and I've played quite a lot.. (28h atm). But I do see other people using them, so dunno

[Moloch]

I've only played about 5 hrs on the Steam version and the purple and yellow girls were the first two I found. I think both I found in the mines. This was before the first update.

[Crowley]

I'm guessing this might be different between Steam and other PC versions.

[Whooper1222]

I'm guessing this might be different between Steam and other PC versions.

...Or a bug on the GOG version.

[Bor]

I found the purple one in the temple today :-)