Actually, @djuki have some problems for reading PPTX in Keynote. I added a patch for CodePlex (92ffaf48efb935639da46ef1a0b0e70de216724d - 29a3321cac8862005a66706ce90904a9b78780bf (Fix) - c0ef044cb9d1df3652964dad80c423fa13289586 (Fix)). But they always have a problem. Now, could you send me a PPTX file created by Keynote, plz ? Thx