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If you select the forced subs
Code:
4610 Subtitle:Deu PGS (3D-plane 2), forced captions only
then it creates ALL 1465 subs in folder 00800.track_4610.Deu_forced.3D_2D and set it to forced.
Then I used the tool
Convert Subtitles.. with forced ticked and it created successfully 88
forced 3D subs BUT in the folder 00800.track_4610.Deu.3D_2D and the file 00800.track_4610.Deu.3D.sup.