It may have to do with the form name. You have the form in two locations but with the same name.
You should have been careful to rename the form name when you published to the new location - File -> Form Template Properties -> Name.
Please try renaming the form and republishing. If that doesn't fix the issue, please reply all.
My guess is that it will fix the issue since the form name is used to determine which form to open and if people (you in this case) have a single cached copy, it will likely be to the old version.
Just an idea,