I realize this is an old thread, but there has been no solution offered for the invisible mod list problem in DAMM. If anyone else is experiencing this issue, you just need to edit the file that the manager uses to keep information on installed mods. The proceeding example assumes DAMM's default AddIns Folder location, using More Hairstyles as the offending mod. Navigate to \%userprofile%\Documents\BioWare\Dragon Age\Settings , open the AddIns.xml file with Notepad, and remove the following lines that appear at the bottom of the document:
<AddInItem UID="More_Hairstyles" Name="More Hairstyles">
<Title DefaultText="More Hairstyles" />
<Description DefaultText="Adds new hairstyles available at character creation. Included are some of Ren's and idkrrr's hairstyles, as well as the Lady of the Forest hair. One hairstyle was created by Anto, and another by NewSea, both from the Sims community." />
<URL DefaultText="http://www.dragonagenexus.com/downloads/file.php?id=392" />
<Version>0.51</Version>
<Publisher DefaultText="Kzelsama" />
</AddInItem>Note that there's a single line under that block of text that should remain. After the edit, the last 3 lines should read:
</FileList>
</AddInItem>
</AddInsList>