Wabbajack can't find Steam game if any Steam libraries are missing

[Frogperson]

Describe the bug

Wabbajack is failing to find my "SkyrimSpecialEdition" game if any of my external Steam Libraries are missing, even though the library with Skyrim is available.

Additional Context

I have multiple steam libraries on hot-swappable drives. Steam fully supports this behavior, as evident by the fact that my games instantly appear and disappear when I insert and eject the drive. However, unless I have all of them inserted at the same time, Wabbajack errors out and fails to check any other libraries for my game.

Wabbajack Version

3.5.0.1

Logs

00:00:00.000 [ERROR] (Wabbajack.Downloaders.GameFile.GameLocator) While finding games installed with Steam|System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:\Games\Hogwarts Legacy\steamapps'.
   at System.IO.Enumeration.FileSystemEnumerator`1.CreateDirectoryHandle(String path, Boolean ignoreNotFound)
   at System.IO.Enumeration.FileSystemEnumerator`1.Init()
   at System.IO.Enumeration.FileSystemEnumerator`1..ctor(String directory, Boolean isNormalized, EnumerationOptions options)
   at System.IO.Enumeration.FileSystemEnumerator`1..ctor(String directory, EnumerationOptions options)
   at NexusMods.Paths.FilesEnumerator..ctor(String directory, String pattern, EnumerationOptions options, IOSInformation os)
   at NexusMods.Paths.FileSystem.InternalEnumerateFiles(AbsolutePath directory, String pattern, Boolean recursive)+MoveNext()
   at GameFinder.StoreHandlers.Steam.SteamHandler.FindAllGames()+MoveNext()
   at System.Collections.Generic.LargeArrayBuilder`1.AddRange(IEnumerable`1 items)
   at System.Collections.Generic.EnumerableHelpers.ToArray[T](IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at GameFinder.Common.Extensions.SplitResults[TGame](IEnumerable`1 results)
   at GameFinder.Common.AHandler`2.FindAllGamesById(ErrorMessage[]& errors)
   at Wabbajack.Downloaders.GameFile.GameLocator.FindStoreGames[TGame,TId](AHandler`2 handler, Dictionary`2 paths, Func`2 getPath) in C:\oss\wabbajack\Wabbajack.Downloaders.GameFile\GameLocator.cs:line 117
   at Wabbajack.Downloaders.GameFile.GameLocator.FindAllGames() in C:\oss\wabbajack\Wabbajack.Downloaders.GameFile\GameLocator.cs:line 65

00:00:59.431 [ERROR] (Wabbajack.InstallerVM) Can't find game SkyrimSpecialEdition|System.Exception: Can't find game SkyrimSpecialEdition
   at Wabbajack.Downloaders.GameFile.GameLocator.GameLocation(Game game) in C:\oss\wabbajack\Wabbajack.Downloaders.GameFile\GameLocator.cs:line 149
   at Wabbajack.InstallerVM.<BeginInstall>b__134_0() in C:\oss\wabbajack\Wabbajack.App.Wpf\View Models\Installers\InstallerVM.cs:line 506

[Mieekaserra]

Steam thinks you have a library in 'C:\Games\Hogwarts Legacy\steamapps' when it cant find it - the gamefinder aborts looking.

you will need to fix your library.

[Frogperson]

Yes, that's the exact issue! I have an external drive mounted to that location. If I don't have that drive plugged in, the location no longer exists, and Wabbajack stops looking for any other Steam games.
Since I have multiple drives like this, it's a bit annoying to have to plug them all in just so Wabbajack can detect a game that was already available

I think a solution for this is to simply have it keep checking even if a library is missing, rather than completely aborting.

As you can see here https://www.youtube.com/watch?v=e3HnDR7A8yE&t=287s (4:47 if timestamp doesn't link properly) dynamically removable libraries are an officially supported feature of Steam.

[Mieekaserra]

This isnt something we can do - Gamefinder is a 3rd party tool

[Frogperson]

Oh, my apologies, I wasn't aware. I guess I'll report this issue to them instead!