The Construct 3 - Spriter Plugin has problems with Sprite-sheeting. Construct 3 combines images including Spriter Images. So, what happens, is that, the SCML plugin can display the wrong image.
So, the game developers that had ported from Construct 2 to Construct 3 also have broken games. Please, help us out on this by making a stable version of the Spriter Plugin as soon as you can.