14640 Multiple OpenGL applications and games fail at ChoosePixelFormat/SetPixelFormat (Lazarus, Counterclockwise, USI T3 emulator)
30364 X3 Reunion hangs at start
33392 .NET Framework 4.0 installer misreports disk space if not enough disk space available 'Drive C: Required - 64u MB, Available - 64u MB' ('FormatMessageA/W' needs to support I64)
34558 Multiple applications and games wrapped with ASProtect 1.x-2.x protection scheme fail to start after registration (Farm Frenzy 2, Alawar, FL Studio 11.x VSTi 'Slayer2' plugin, FORScan)
35694 Serena hits deadlock on exit
35744 LabChart Reader 8 installer ends prematurely (VBScript support for class default sub missing)
36873 Multiple games have non-functional mouse input, invisible mouse cursor (Chronology, Mount & Blade II: Bannerlord)
39297 kernel32.IsValidCodePage and friends don't support code page 708.
46950 UFOHD2 crashes when trying to open camera preview
47771 Multiple games have broken mouse movement (Alan Wake, Hard Reset, Battlefield 3, Watch Dogs, Sniper Elite V2 Remastered)
47906 Alice Madness Return crashes
48336 Applications using MS ADO require Recordset Connect to be implemented (Enterprise Architect, Brickcom CMS client)
48717 Saints Row 2 needs xactengine3_2.dll
49012 Application build with .NET CoreRT crashes due to FLS callbacks not being called
49044 CPU-Z 1.92 crashing on startup
49450 Adobe Shockwave Player 11.x plugin installer fails with jscript:cc_parser_parse '&&' expression not implemented
49529 5.12 regression: Wine segfaults if the +heap debug channel is enabled
49661 Red Evil:black screen in game.
49673 Backpacker 3:Americana:unhandled exception
49679 Visual Studio 98 and Visual Basic 6 installers hang
49808 Stellaris loads very slowly
49814 FreeBSD 12.1 undebuggable crash on startup (regression)
49821 Seismobuild crashes at start
49860 Dungeons & Dragons Online 64bit client fails to start in wine-5.16, 5.17, 5.18
49904 all wine processes show a definite leak in load_libwine()
49950 d3d10:reflection tests crash
49960 The Sims Complete Collection is stuck on playing intro
49966 powershell_ise.exe fails with Unhandled Exception: System.NotImplementedException: The method or operation is not implemented. at System.Runtime.InteropServices.Marshal.ThrowEx
49982 A '(call )' line does not reset %ERRORLEVEL% to 0
49997 Capella no yakusoku: Game doesn't start (black screen)
50000 Wineconsole crashes on F8
50004 Python script hangs when pipe IPC is used
50008 Metro Exodus fails to launch since commit fde5967f725624c5ee4995dcbe22f262979c5c9c
50016 PS Remote Play can't install: "To use PS Remote Play, update your PC's OS to the latest version, and then install the Media Feature Pack from Microsoft."
50020 mf:mf tests crash on Windows 7
50025 Cannot run Line (chat app) on Wine
Bugs fixed in 5.21 (total 24):
22797 'Sample1_DLLEmbedding' example from BoxedApp SDK v3.3.x (native API application virtualization scheme) crashes (needs hookable NtXXXSection API entries / NT syscalls)
25834 Adobe Reader X and XI cannot open in Protected Mode due to advapi32.dll CreateRestrictedToken being a stub
33072 dxdiag: can't retrieve network info
33162 Acrobat Reader 11 crashes on start (native API application virtualization, NtProtectVirtualMemory removes execute page protection on its own code)
45349 Multiple applications and games crash due to missing support for 64-bit syscall thunks (StreetFighter V, World of Warcraft)
45550 League of Legends 8.15+ anticheat fails due to incorrect implementation of NtQuerySystemInformation(SystemModuleInformation)
45666 Multiple Riot Games' anti-cheat / protection schemes need implementation of NtQuerySystemInformation 'SystemModuleInformationEx' info class (League of Legends 8.15+, Valorant/Vanguard)
46373 Unknown game crashes in unimplemented function msvcr80.dll._strnset_s in 1.6.2
46870 League of Legends 8.12+ fails to start a game in Vista+ mode (anticheat engine, SystemExtendedProcessInformation)
46967 GOG Galaxy doesn't run in virtual desktop
48203 Far Manager 3 broken appearance
48204 Wineconsole running Far File Manager 3 crashes as soon as you try to resize its window
48715 A Wolf RPG game freezes on map transition
49298 Path of Exile crashes when switching to Vulkan Renderer on RADV. Switching works in proton.
49449 Terraria Mobile Server (.NET 4.x) crashes with System.NotImplementedException NATUPNPLib.IUPnPNAT.get_StaticPortMappingCollection()
49610 mu online crashes after login
49739 Microsoft Flight Simulator needs netutils.dll and srvcli.dll
49785 Linking of some objects sometimes fails with undefined reference to windowscodecs GUIDs
49813 Implement debugging feedback extensions (VK_EXT_debug_utils/VK_EXT_debug_report) to forward data to Linux impl
50038 IWbemClassObject::Get method with wszName = NULL crashes inside wbemprox
50039 Wine 5.18+ fails build on Ubuntu 18.04 with libwine.so Makefile symbolic link
50049 Fallout 76 opens black screen then crashes on start
50050 Wine 5.20 build fails on Ubuntu 16.04
50077 .NET 3.5SP1 installer depends on PEB->Reserved[1] / AtlThunkSListPtr32 being 0 or 1