http://bugs.winehq.org/show_bug.cgi?id=32637
--- Comment #2 from mt m.tarenskeen@zonnet.nl 2013-01-07 02:28:29 CST --- I guess with "regression test" you mean trying to find the latest wine version that did not yet expose this bug?
I am trying to downgrade to an older wine version. But it's not an easy task due to several dependancies on my Fedora system. I'll keep trying and searching.
In case anyone else wants to try to reproduce this bug, it also happens with this small and free VST plugin, that is derived from TAL-U-NO-LX-V2.dll:
http://kunz.corrupt.ch/downloads/plugins/install_TAL-Chorus-LX.zip
I am using dssi-vst-0.9.2-6 on Fedora 17, but experienced the same problem using Festige.