Probems with the set of Ronald Brautigam Haydn: Complete Music for Solo Keyboard

I seem to be striking this same problem in various sets. When trying to identify a particular album, Roon mismatches it. It can be matched up by laboriously using the up or down arrows (unless there is a trick there I’m missing - please tell me if so).

But Roon has recognised which album it is in the set yet …

A perfect example is shown below. The album is recognised as number 12 in the set yet it insists on trying to match it to number 2 in the set & of course shows errors. I can accept it and manually enter in the correct header but this will not fix any incorrect track display.

Is there something obvious I’m overlooking or is this a bug in Roon?