https://bugs.winehq.org/show_bug.cgi?id=48230
--- Comment #2 from belgix_oz@hotmail.com --- Will try that this weekend. Because gstreamer is presently compiled 64-bit only on my system, I would also have to recompile 5 others gstreamer 32-bit dependencies (libpcre, glib, db, pam & libcap) to test that.
If your solution work, I will also report this issue to Gentoo herd as dependency issue on >=app-emulation/wine-staging-4.17 ebuilds.