https://bugs.winehq.org/show_bug.cgi?id=30550
--- Comment #27 from James Le Cuirot chewi@gentoo.org --- I actually forgot to come back here to say that although it is certainly better for me, it is not completely fixed yet. While nothing is completely invisible now, which makes getting through these trickier levels possible, some parts are still missing. Most notably the tentacles that you get in many levels have sections missing in a kind of stripy manner.
I'll try to determine exactly what caused the earlier improvement at the weekend so that we can close this out properly.