https://bugs.winehq.org/show_bug.cgi?id=36983
--- Comment #2 from Rosanne DiMesio dimesio@earthlink.net --- Oblivion works fine for me in plain Wine as long as winegstreamer is disabled (bug 30557). I just retested in 1.7.36, but earlier versions worked too.
There's not much here to go on, but from the description of the symptoms, I don't think this is the winegstreamer issue. That doesn't cause a crash--the game just hangs at the main menu. More likely it's a POL issue.
Please retest in plain 1.7.36 or later, and if this is still an issue in plain Wine, provide regression test results. Otherwise this bug risks being closed as invalid.