The problem with using copy/paste into a new batch group is that it keeps the original name. If you Ctl-V twice, then toss out the first copy it works. It’s a lot fucking faster than re-booting. I might be wrong, but I thought it has always been this way, but it’s never a good idea to copy and paste setups with expressions. And although you didn’t ask for my opinion, I’ll give it anyway: If you are just copying the setup then putting it to new use, not just making amendments to it, then keep a default one in your user bin. You will never experience issues like this if you pull a fresh one out of the bin every time.
I hadn’t thought of the Batch bin. I’ll give the double paste a try.