Was Luke's projection in TLJ solid?
When he wanted it to be, could the projection Luke sent to Crait become solid? I only ask because when he touched Leia's hand and gave her the dice, he appeared to be solid. But when he let Kylo flay him with the saber, he was obviously not solid any longer.
Also, the dice Luke gave Leia didn't disappear until a few minutes AFTER he died. How is that possible?