[Bug 49589] New: UnrealTournament Demo mouse non-movable in 5.13, was working in 5.11

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49589

Bug ID: 49589
           Summary: UnrealTournament Demo mouse non-movable in 5.13, was
                    working in 5.11
           Product: Wine
           Version: 5.13
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

After starting game (/.wine/drive_c/TournamentDemo/System$ taskset -c 0 wine
UnrealTournament.exe) I can see splash screen, then game window appear, where I
can use keyboard for navigation and quitting game, yet mouse cursor stuck in
top-left corner (where I still can click for menu)

Tried setting Windows version back to winXP/win95 from Win10 - no result.
Checked/unchecked checkboxes in winecfg about wine <-> window manager
integration (I use old kwin from kde3).

Mouse in DeusEx 1 demo and Unreal2 demo still works.