I have create a custom SharePoint 2013 workflow using VS.net 2012 and deploy it on multilingual (English and Arabic) site collection, I tested successfully the workflow on English site, but when I checked the Alternate language check box from site setting -> Language Setting menu to display the Arabic interface language, then start to test the same workflow, the workflow started the first step, but when I submit to proceed to the next step the workflow did not work anymore.
please advice if anyone faced this problem before as the workflow almost will work on the Arabic language.