https://bugs.winehq.org/show_bug.cgi?id=44883
--- Comment #8 from Andrew Eikum aeikum@codeweavers.com --- Text files compress well. In the future you can use bzip2 to compress the log and upload it here.
Looking at your log, my guess is this wants operation set support. The last call it makes to xaudio2 stuff before crashing is IXAudio2Impl_CommitChanges, which returns E_NOTIMPL in Wine. Changing that to S_OK may be good enough to work around.
In the meantime, you can workaround by setting xaudio2_7 to native, as you already found.