In 1.87 the support for simultanous Alpha and Multiplying was dropped (well it wasn't support, but worked kind of "by mistake"). In 1.88 this was then re-implemented, tho in a "more controlled" way, as versions text mentiones. Probably this is what you're talking about.
You maybe best check if it's an 1.87 issue by downgrading your compiler quickly, will take a Minute or two. You can get Versions down to 1.85 from the Update section.
You maybe best check if it's an 1.87 issue by downgrading your compiler quickly, will take a Minute or two. You can get Versions down to 1.85 from the Update section.