I had the same problem with a Cammy I made recently ( used a new recipe)
I also returned it to the mould overnight, however, it made little difference. Top and bottom OK but the sides wouldn't hold and I ended up with these plate like cammys. Left them in my box cave for 2 weeks and although they looked OK and got a nice white mold a gross smell started to develop.
They were used as pig tucker........................pigs wouldn't touch them.
I know my comments aren't much help, but maybe its time to ditch them and start again.