the step animation won't work because it's an 8 frame animation.
You can see the frame order on the right side.
So you need to use a turn direction command for a smooth animation.
Hello WinLu, sorry for bumping an old thread, but I'm new to using RPGmaker and I've recently run into a similar issue to OP here, and I was wondering if you could give an in-depth explanation on the direction commands needed to properly run all 8 frames smoothly? I've used the autonomous movement menu to do this and it almost works, but not all 8 frames show properly. Thanks in advance!