Do they have roots yet? If not, they need to go under a humidity dome. If so, they look like they ran dry. Any possibility you're afraid to water them, just giving them enough to moisten the top layer of soil, leaving the bottom dry? Sorry, I have to ask, because I've seen it before, and it looks possible.
U put clones without developed root systems outside and I think the one may be dead by the time I finish this post. Now you know.
Baby the clones for a few weeks at least next time and when they have enough roots put them out in dappled shade first then slowly add more full sun. Wanna see if there are enough roots? Turn the pot over and put the stem in between two fingers, let the whole rootbal slide out into ur hand. Then u can see what's going on in there.