To start with I am not familiar with what you are doing, but have an idea.

Would it be worthwhile closing proseries, and within windows locate the "new client" proseries file, and manually delete it.

then open proseries, run homebase maintenance to get the deleted file out of the homebase.

Then re-setup the new client and try again?

Again, just a guess and something I tend to try, when something is messed up.

Jeff