Impossible to Change Form ID

I’ve already submitted a support request, but thought I’d post here to see if anyone else is experiencing an issue where it is impossible to change an assigned Form ID? I change it, publish go back to designer and it’s reverted to what it was and in some cases duplicates it to the form parent

so I then go and remove the extra assignment when prompted by audit and round and round in circles we go!

Here is my public share link: [LINK]