Windows NPC AbigailMine can't load portraits from 'Portraits/AbigailMine'

[DespairScent]

Warning in logs appears when you go down to floor 20 of the mines (when Abigail is there, who appears during the rain and if you saw a certain event). This issue doesn't cause a crash and there are no visible issues, but the warning in the logs is still a bit disturbing.

Game Version: 1.6.9 'beta' build 24301

Log from game-latest.txt:

[05:57:39 Verbose game] Warping to UndergroundMine20
[05:57:40 Warn game] NPC AbigailMine can't load portraits from 'Portraits/AbigailMine': Microsoft.Xna.Framework.Content.ContentLoadException: The content file was not found.
---> System.IO.FileNotFoundException: Could not find file 'C:\steamdata\steamapps\common\Stardew Valley\Content\Portraits\AbigailMine.xnb'.
File name: 'C:\steamdata\steamapps\common\Stardew Valley\Content\Portraits\AbigailMine.xnb'
   at Microsoft.Win32.SafeHandles.SafeFileHandle.CreateFile(String fullPath, FileMode mode, FileAccess access, FileShare share, FileOptions options)
   at Microsoft.Win32.SafeHandles.SafeFileHandle.Open(String fullPath, FileMode mode, FileAccess access, FileShare share, FileOptions options, Int64 preallocationSize)
   at System.IO.Strategies.OSFileStreamStrategy..ctor(String path, FileMode mode, FileAccess access, FileShare share, FileOptions options, Int64 preallocationSize)
   at Microsoft.Xna.Framework.TitleContainer.PlatformOpenStream(String safeName) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\MonoGame.Desktop\MonoGame.Framework\Platform\TitleContainer.Desktop.cs:line 29
   at Microsoft.Xna.Framework.TitleContainer.OpenStream(String name) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\MonoGame.Desktop\MonoGame.Framework\TitleContainer.cs:line 37
   at Microsoft.Xna.Framework.Content.ContentManager.OpenStream(String assetName) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\MonoGame.Desktop\MonoGame.Framework\Content\ContentManager.cs:line 276
   --- End of inner exception stack trace ---
   at Microsoft.Xna.Framework.Content.ContentManager.OpenStream(String assetName) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\MonoGame.Desktop\MonoGame.Framework\Content\ContentManager.cs:line 289
   at Microsoft.Xna.Framework.Content.ContentManager.ReadAsset[T](String assetName, Action`1 recordDisposableObject) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\MonoGame.Desktop\MonoGame.Framework\Content\ContentManager.cs:line 319
   at Microsoft.Xna.Framework.Content.ContentManager.Load[T](String assetName) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\MonoGame.Desktop\MonoGame.Framework\Content\ContentManager.cs:line 255
   at StardewValley.LocalizedContentManager.Load[T](String assetName, LanguageCode language) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\LocalizedContentManager.cs:line 524
   at StardewValley.NPC.TryLoadPortraits(String assetName, String& error, LocalizedContentManager content) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\NPC.cs:line 1058.