The state machine probably isn’t progressing to the locomotion state, so a few things you can check -
reference the tutorial and check if your speed value is set correctly in your animation bp also check that the locomotion blendspace “x axis range” is set to your characters max walk speed and that is has animations set to resonable division in that blendspace, the label also needs to be the set to “speed”, (or more specificaly, the name of the variable your setting in you event graph). Lastly check you anim graph and make sure transitions inside your state machine is correctly set.
Probably your hiccup can be found at one of those locations, all these things are detailed in the tutorial, so just re-do it to make sure you didn’t miss anything if it still isn’t working.
//gl hf