I've been working on an Infopath 2013 form (published to a SharePoint 2013 form library) over the past few weeks. Until recently, I haven't had any issues. Yesterday, I opened the form and it had reverted to a much earlier version (lets call it VBroken).
Since then, I've tried making changes to the form and publishing them. However, after I reopen the form, the form is reverted to version VBroken. The weird thing is that not everything is broken. I can still make text changes or add Data connections. Both of those are saved.
I cannot make property changes or add/remove rules and make those changes stick. Every time I publish, those property changes (like making a section optional) or adding a rule, ends up disappearing.
I've tried publishing to a different site and form library. I've had someone else open up the form using their version of Infopath. The form is still reverted back to VBroken.
Has anyone else seen this issue? Is there any way to fix it besides re-writing the form?