With me Opus (11b9 x64) always starts up in the same folder, with the same columnwidths.
This is when using the [X] button right hand top corner (Alt-F4, close lister)
However, in case of using "File Exit", Opus does remember and return to the last position/columnwidths.
(Settings:Preferences->Startup->Open the Listers that were open..etc - selected)
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