In reply to Rick Sewards:
Hi Rick
No pictures unfortunately. It will be obvious I'm sure whenever you next visit. It may well be Pump it Up Again that's fallen down, judging by that route's description, and it probably is that same cave entrance.
There was a small wall of rubble built just outside the cave entrance, so somebody has already been up there, possibly they built the wall from blocks they cleared to access the cave? I'd strongly advise against caving in the present condition.
Shifting the rubble would be quite a laborious task, there's a lot of it! It would pose a serious hazard to anybody on the path beneath at the time. I'll also reiterate that there's possibly more large loose blocks on the wall that are ready to come down.
The approaches to Renaissance and Bubble Memory are dangerous from either side now so I'd recommend people stay off them for the time being, particularly if other climbers are around. I dunno if it'd be worth marking them as off limits on the UKC crag page. Neither route appeared to have been damaged fortunately.
Sorry if that's not particularly helpful but I don't wish to say more than I know on a public forum.
Cheers
Post edited at 23:22