[Bug 50969] New: Regression - Warframe unable to control camera with wine-staging 6.6

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50969

Bug ID: 50969
           Summary: Regression - Warframe unable to control camera with
                    wine-staging 6.6
           Product: Wine-staging
           Version: 6.6
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail], [e-mail]
      Distribution: ---

Warframe worked normally in wine-staging 6.5 for me.
Archlinux updated to wine-staging 6.6 and consequently I've lost the ability to
control the characters with the mouse in the game. Downgrading the package to
6.5 resolves it, which leads me to believe this is a regression introduced with
6.6.
With 6.6 mouse can still be used in the game menus, but as soon as the 3D world
controls become active it doesn't respond to inputs. Keyboard input works
normally, however the game is unplayable without the mouse.