I have tested the demo only for a while (first encounter with the spiders). During the combat the halfing was seriously injured and I tried to heal her with the cleric. However, I couldn't because I already have healed the elf, but only once, so that I should have enough free spell slots, at least one, but the heal spell was disabled. That not follows the srd5. Clerics or wizards prepare a pool of spells that can cast spending spell slots. So they can cast the same spell with all their free slots.
It is that a design decision or just a coming featured not yet implemented?
Thanks for this awesome game.