Compost differences

So sorry for you Mark!
All that wasted effort - I’ve had similar crap results with compost too. You think that you’re laughing once you’ve got your stuff big enough to prick out and pot on - but sadly it’s not the case.
Hope you can manage to salvage some of it.

I've repotted those that look like they could recover after washing their roots clean. I'm away till Monday so I'll have a good look at what I've got left. Should have plenty of tomatoes as I've grafted a lot and are not ready for potting on yet - but some of those are not going to survive. I've a couple of capsicums that were potted on. The aubergines don't look too bad at the moment but I only have one spare if they kick the bucket.