How to tell if carbon soled shoe is fatally broken?

Anyone know if a clicking sound from a show’s carbon sole is a sign if future disaster?

I’ve some Mavic’s with a carbon sole. I noticed the other day a click/crack sound as I walked a couple of places in them. Was repeatable about every third step. Had a fiddle today and it repeats each time by pressing down and rolling foot inwards and there’s a sensation from middle of foot arch area when it clicks.

There nothing visible on the outside sole and nothing inside as there’s a lining under the innersole.

Is this how carbon soles fail if they’ve some sort of layering to construct them? I understandably concerned not to be thirty miles from how in the middle of nowhere and my shoe splits in half!!

Also is it possibly related to Speedplays? I was wondering if the increased cleat stack height makes a greater differential to the heel and so the sole more liable to issues from any kind of walking? Then again, I’d have thought carbon soles could handle that.

Not keen on replacing as they fit like a glove and I love them nearly as much as I hate shopping