replied on February 28, 2020
Hi Blake and Jessica,
Turns out this error is caused by a case sensitivity mismatch between what the Workflow Import Wizard checks (case-sensitive) and what the Workflow Server stores (case-insensitive) for the web service name.
Basically, the Import Wizard looks at the process your importing, sees it has a "Forms" web service, thinks that's different than the existing "forms" web service, and then dutifully tells Workflow Server it needs to create a new web service called "forms". Workflow Server correctly reports back that a web service with that name already exists.
I strongly suspect one of your systems has the web service labeled "Forms" while the other has it as "forms". Get the capitalization matching and I bet the problem goes away.
That said, this is still a general usability bug. The Workflow team is now aware and they anticipate addressing it in a future patch or version.
Cheers,
Sam