While I test flame projectile is has a bug it did not hit the target, the issue I found whenever you save and load in same spot, then use flame to hit but it not hit the target, until leave the area and back again, to solve this fix, save part must not allow in dungeon only save in Map ID 14 and Map ID 26 to avoid this issue, I don't know it issue from plugin itself or not but will keep fixing, might be long test however.