Well, the whole growing-tip of this plant shrivelled up and died.
But further down the plant, several healthy side-shoots are appearing. People sometimes deliberately pinch-out the growing-tip of a plant in order to promote the production of side-shoots, but this one has done it for itself!
The next-door "Mini Munch" plant already has its first fruits forming.
Last weekend I put two more plants into the Cucumber container, to join their older siblings. I now have two each of "Diva" and "Mini Munch".
Four Cucumber plants in the same container may sound like a lot, but I think they'll manage OK - it's a big container (about 70cm in diameter).