Continuity mistake: When D'leh is talking to the Egyptian "god", he walks up to the army of Egyptians. He walks to within arm's length of them, but in the next shot, he's several paces back.
Continuity mistake: When De'Leh goes into Tic Tic's tent with the white spear and stands, he holds the spear at his side. It jump cuts to a different angle when Tick Tick turns to ask what he wants and De'Leh's stance and position make a very noticeable change.
Continuity mistake: When the 'four-legged demons' catch Evolet leaving objects along the way for D'Leh and others to follow the captives, the leader punishes her by whipping her hands. From behind, two locks of her hair are hanging in front of her right shoulder. In the front shots, four locks are visible in front of the same shoulder. (00:29:35)
Answer: It is explained that he decided not to wait for the last hunt and left to find another way to feed the tribe. He left in secret so that others would not follow him abandoning the tribe.