Manually adding a mod immediately directs me to install the modpack.

[nathanmerrill]

When I open the file chooser to select a mod, Automaton goes directory to the Success page, and directs me to install the modpack, which then promptly fails.

Logs below:

[13:53:14.5607864] [.ctor] 5/18/2019 1:53:14 PM Automaton/1.3.4.0 (Microsoft Windows NT 10.0.17763.0; x64) .NET Framework 4.7.3416.0
[13:53:14.5607864] [.ctor] 5/18/2019 1:53:14 PM Is admin: False
[13:53:14.5607864] [.ctor] 5/18/2019 1:53:14 PM Automaton Start
[13:53:14.6817782] [.ctor] Long path enabled. Continuing.
[13:53:14.6957786] [.ctor] LineNumber: 0, FilenName: , MethodName: Callout_FoundName
at MS.Internal.Xaml.Parser.GenericTypeNameParser.Callout_FoundName(String prefix, String name) Prefix 'materialDesign' does not map to a namespace.
[13:53:16.4595465] [ChooseModpack] Opening modpack filesystemBrowser
[13:53:19.9878906] [LoadModpack] Modpack loaded
[13:53:48.8078566] [Initialize] Initializing API base
[13:53:48.8078566] [Initialize] Apikey empty
[13:53:53.6911985] [Initialize] Key captured
[13:53:54.0086628] [Initialize] User premium status: True
[13:53:54.0086628] [Initialize] User is logged in
[13:53:54.4596913] [GetMissingMods] Missing mod count: 257
[13:54:14.4201811] [PurgeQueue] Queue purged of mod: Wyrmstooth 1.17B with MD5 of 09e09bc2424319e4b37264629c6ef956
[13:54:21.3570508] [ValidateTargetModArchive] Missing mod count: 256
[13:54:29.8697598] [DebugWrite] [INSTALL] Installing Mod Organizer...
[13:54:29.8717596] [ExtractToDirectory] Extracting: to C:\Games\Steam\steamapps\common\Skyrim\Ultimate Skyrim 4.0.4
[13:54:29.8937750] [.ctor] LineNumber: 0, FilenName: , MethodName: .ctor
at SevenZipExtractor.ArchiveFile..ctor(String archiveFilePath, String libraryFilePath) in C:\Programming\C#\SevenZipExtractor\SevenZipExtractor\ArchiveFile.cs:line 26 Archive file not found