Hey, sorry for the late reply, @magumb0s!
I actually did a report on this stamina system back in the day for an applied maths course, so I’m able to follow this logic pretty easily! The Soulsborne stamina system is not your typical one so I see why you’d need all the extra parts.
I think your problem lies here, in the input. This is ONLY running the Completed line once, when you let go of the button. If you let go of the button before a montage completes it returns “True” and then it never sets the ENUM back to “None”, keeping you from increasing speed again AND preventing stamina recovery. Try connecting the “True” line to the Set Enum node as well and test it.
Try to scroll to the right with those errors so we can actually locate them.
You can click on any of the errors where there’s a magnifying glass and it will take you right to the issue at hand!
Because in the Soulsborne system of stamina if you have even 1 point of stamina you can execute any stamina consuming move, but because of the delayed recovery it really simulates struggling and being winded quite well. Though personally, I’d just clamp it before setting instead of setting it to 0 directly after.