Hi JSQuestions,
Unfortunately its a reported bug, changing custom field to accept the multiple value cause issues . its already been mentioned by Brian in his
blog , go through the post and see the workarounds he as presented resolved your issue. or you can log a support call, because fix is not released yet, free of charge since its already declared as fix.
Hope this helps.
| Khurram Jamshed | Follow my blog about Enterprise Project Management Solution | http://khurramjamshed.blogspot.com |