At some point the stamina value is calculated wrongly, allowing you to 'sprint' and 'jump', but the 'actual' stamina value realises you are too heavy and therefore can't. Showcase video: https://youtu.be/k0vfpbNY2nk

Sprinting gives animation but doesn't allow you to go any faster.
Jumping gives animation but you don't actually lift.

Note: Maybe make it possible to vault/step like the old days when you carry too much? Having to walk around fences can be a pain.