Hello
I have a flow that i have been using for many months. Today, out of nowhere i got the below error and I haven't been able to resolve it. The join tool seems to think something has been renamed the same as another field. For some reason the join tool is duplicating the lines (see second screen shot). I cannot simply tick one of them...the only way i can continue to push the data past this point is to remove that field entirely.
Please help

