Update common-issues.md

added issue where downloading a game with msync stops it right before it's finished

src/common-issues.md

@@ -5,6 +5,7 @@ Several things can lead to a program not working. The most common reasons are li
 
 | Problem                                                                  | Solution                                                                                                                                                                                                                                                                                                                                                                                                                             |
 |--------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| My game stops downloading right before it's finished. | You are most likely downloading a game with MSync enabled. Restarting Steam should fix this and your game should be properly installed. You can also fix this issue by disabling `Enhanced Sync` in your bottle whenever downloading a game. |
 | My game crashes due to "invalid instruction".                            | Your game is likely using [AVX](https://en.wikipedia.org/wiki/Advanced_Vector_Extensions) instructions. These are more common in console ports. AVX instructions are x86 specific, and Rosetta doesn't translate them. Unless you can find a way to disable or bypass them (check online), then your game won't work.                                                                                                                |
 | I want to play a competitive multiplayer game, but it won't load.        | Competitive multiplayer games, especially battle royales and other FPS games (like PUBG, Fortnite, Apex Legends, Valorant), often have some form of driver-level anti-cheat. These won't work under Wine.                                                                                                                                                                                                                            |
 | My DirectX 9 game has graphical issues, or doesn't work at all.          | DirectX 9 games are handled through Wine's own `wined3d`. Whisky focuses on modern titles using DX11 or 12, and you may run into issues with DX9 games. CrossOver is a better choice in this scenario, as it runs on Wine 9 instead of Wine 7, and has a more up-to-date version of `wined3d`. If you're not sure what Graphics API your game is using, you can check on the [PCGamingWiki](https://www.pcgamingwiki.com/wiki/Home). |