[BUG] **Bug report title here**

[marinamnca]

I try to open a file and the following message appears

Error: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values. (Parameter 'start') at Obsidian.Services.HashtableService.LoadHashtable(String hashtablePath) in D:\a\Obsidian\Obsidian\Obsidian\Services\HashtableService.cs:line 176 at Obsidian.Shared.WadExplorer.<>c__DisplayClass49_0.b__0() in D:\a\Obsidian\Obsidian\Obsidian\Shared\WadExplorer.razor.cs:line 172 at Photino.Blazor.PhotinoDispatcher.InvokeAsync(Action workItem) in D:\a\Obsidian\Obsidian\Photino.Blazor\PhotinoDispatcher.cs:line 26 at Obsidian.Shared.WadExplorer.LoadHashtable() in D:\a\Obsidian\Obsidian\Obsidian\Shared\WadExplorer.razor.cs:line 170