Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately there is not enough information in the bug report to fix the problem.
I tried to find any preset with your mentioned --ar option, but I can not find it. Could you please tell us if you created or edited presets? It would help to provide the presets.xml file located in ~/.winff/ Did you specify any of the additional option fields? Which preset did you use? I.e. what did you do EXACTLY when the problem appeared.
I think that you can solve the problem for your own situation now you by editing the preset (menu "edit" -> "Presets") you are trying to use and remove one of the hyphens (there should only be one hyphen in front of "ar").
Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately there is not enough information in the bug report to fix the problem.
I tried to find any preset with your mentioned --ar option, but I can not find it. Could you please tell us if you created or edited presets? It would help to provide the presets.xml file located in ~/.winff/ Did you specify any of the additional option fields? Which preset did you use? I.e. what did you do EXACTLY when the problem appeared.
I think that you can solve the problem for your own situation now you by editing the preset (menu "edit" -> "Presets") you are trying to use and remove one of the hyphens (there should only be one hyphen in front of "ar").