Miriam sometimes not turning

As the title says, sometimes when I tried to turn around Miriam would just sort of scoot backwards. I cannot guarantee it never happened otherwise, but the times I noticed it involved a short nudge of the left stick or an attack immediately after having pushed the stick to turn. Most times it lasted for one or two attacks until I realized it and turned properly, but once I managed to keep failing to turn for around two seconds. I suspect that it might be a matter of the attack overriding the turn before the latter completed snapping me back to my initial position.

The controller used was a roughly ten-year old Dual Shock 3 emulating an Xbox 360 controller using ScpToolkit.