https://bugs.winehq.org/show_bug.cgi?id=52452
--- Comment #1 from Johannes wine@sagagames.de --- Correction: I can reproduce the crash as well, but you require a current test version of OpenMPT, the latest stable version downloadable from our website doesn't contain this code path yet.
You can obtain current test versions which exhibit this issue at https://builds.openmpt.org/builds/auto/openmpt/pkg.win/1.31/