What a shame Jas, it is a good doer for me, although you can see some dark spots on the leaves which is a bit of a worry
I've got Carnaby growing quite close, and that has reflowered, on the other side is Scartho Gem, which got wilt!!! I'm a bit of a crammer, as folk know , and sometimes wonder if I grow then too snuggly?
That may be the problem with Sunset, which also got wilt, as Pamela Jackman is nearby and is a bit of a thug in clematis terms, I think!!
Twixt optimist and pessimist the difference is droll, the optimist sees the doughnut whilst the pessimist sees the hole
Those are all looking great Tig, they've done really well for you this year. I'm disappointed with all of mine. They've not performed at all for me despite putting on lots of growth. Perhaps it's because they were only planted in this year and they might be taking a bit of time to settle. Therre's always next year.