It could be that the corruption only affect the output in Workflow but not the Design tool.

Even if the resulting output is the same, Workflow and Design tool aren't build the same way, so a single wrong character in the configuration of the form could be overlooked by the Design tool but have greater significance in Workflow.

Also at this point, we cannot compare output as you get it from the Design tool but it isn't yet there in Workflow. It seems that the process that takes the form from the Design tool and convert it to a proper usage in Workflow has an issue.

You could try deleting the error form and all its related resources in the Workflow folder. Then, to be on the safe side, stop and start Workflow. Then resend your form from the Design toll to Workflow and see if that helps.

If that doesn't help, refer to my last comment in previous post wink
99 frigging bugs in my code
99 frigging bugs
Take one down
Code around
127 frigging bugs in my code