I uploaded a mod to the steam workshop without a preview picture. after i made a preview picture i liked i tried to upload it but it does not show up in the preview window nor does my mod upload when i press the upload button. my picture is a 512x512 .jpg i have this problem no matter what i want to do with the mod. whenever i press the upload button the window just sit there as if i have done nothing. so my mod is without a preview picture and i cant add additional tags nor can i post updates of my mod in the workshop. any help would be appreciated.

You don't get any sort of error message or anything at all?

no, nothting at all changes, no matter how many times i press upload or restart. at first i could not even upload the mod so i uninstalled and then reinstalled the CK and i was able to upload it after that but as i said i uploaded with out a picture. and now i cant upload a picture, I can make changes to my mods files but if i try to add a picture or edit the description or add tags or do anything besides edit the title of my mod in the upload window the window just sits there and does absolutly nothing when i press upload