Yes, Arturia Spark Vintage Drum Machine (not the regular Spark) presets window opens BEHIND the plugin in Cubase 8, not in other DAW.
Just like all the other plugs with internal menus then. Disable AOT, fix coming.
In the mean time right click on the tool bar at the top of the plugin and uncheck Always On Top, unfortunately as soon as you close the window Cubase resets it to on again, as Grim states fix coming.
Aowww, wasn’t aware of this bug. Although i love Cubase, they really never stop making jokes, these devs…
Thanks for the tip !
8.0.5 fixes this problem.