OP
Deleted member 473
No need to be obtuse then.
I was testing how the series linking actually works, only that way could we check it was actually a bug.
Not at all. There could have been something peculiar about my setup which stopped webif from accepting both series.If you had said that your box gave exactly the same error, that would have confirmed a bug in webif's way of deciding on duplicates, which is what prpr actually suspected, ie, that both the CRID and channel had to be examined to decide on a conflict.
What you checked, we already knew.