When I try to copy some desing in Design Navigator throigh the opton "Save copy as" everything is good. I have new desing with old name in case using <%%DisplayName ("name")> _. Hovewer, when I try to change this name, design name in Design Navigator still old.
One more issue.
If I try to replace design through changing parent design name, the target design still stay on the old place.
It doesn't matter what files use. The problem is with VS. After renaming nothing changing with design names or them location. After reopening everything is OK.