We recently did a forms update to be on the correct version for the iOS hotfix.  After doing the hotfix, we started having strange things happen.  First, instance data is completely missing.  I know the forms process kicked off because it is saved in the repository.  The second thing that started happening is field calculations would stop working after the form was saved as a draft.  We have a timesheet process and while filling out the form, it works as it should, but once you submit or save as a draft the calculation zeros out until you alter or add hours.  Any suggestions?  

Picture is before saving draft, Total hours calculates as it should: 

Once you save as draft, calculation stops working: