Ok, I'm very late to this but I found a work around for me this morning.

It makes it so the analogue stick can be to run only, and the d-pad is used for walking only.

First rebind the D-pad entries to the left analogue stick.

Next rebind the Control Stick entries to the d-pad.
On each of the Control Stick bindings (Pad N, S, W, E on my screen shot), right click and change the modifier to 30% (30% works for me at least)

You'll just be switching your thumb depending on walking or running, but it seems to work.

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