Maximum number of screenshots per OS

How many screenshots can I take before the cache is full? I obviously took too many screenshots on yesterday’s ride. In any case, the last pictures were no longer shown to me at the save my ride screen. Is there a maximum number and if so, what is it? And why can‘t we see this number in game?

I use a AppleTV for zwifting.

I counted 12 pictures that were shown to me today. But I took more.

So is the limit now a maximum of 12 images? Was it always like that?