https://bugs.winehq.org/show_bug.cgi?id=42233
--- Comment #6 from Sebastian Lackner sebastian@fds-team.de --- I also tried to reproduce this issue, but everything works fine here. It would be useful to know some more details about your setup to narrow down the root cause:
* After creating the fresh prefix, did you change any settings? For example, switch to a different Windows version or enable virtual desktop mode? And how exactly did you install Steam into the fresh prefix? If you used winetricks or some other scripts it is important to know because they sometimes also apply other tweaks. It is unlikely, but they could make a difference for this bug.
* Which DLCs did you have installed during your tests? If there is any way to install DLCs manually or to disable them, could you please test if the regression is really related to Oblivion, or to one of the addons?
* Wine Staging 2.0-rc5 contained a patch which could behave different depending on the window manager. Which one do you use? If you have multiple installed, does it make a difference?
If you have any other idea what might be unusual about your Wine setup, such information might also help. Thanks!