same here, people in game reporting this, and some threads on here too, this is within the last update it seems, im new as-is

i ran into about 3 other PC people in my last session complaining about it. most of the console players arent aware of the incremental movement/stance stages. im not sure the cause of issue... but there's definitely people experiencing it. is this official bohemia btw?

the scroll wheel now acts like an 'on/off' switch there isnt any incremental in between, for walk speed and crouch height

I have this problem too, major annoyance.
just started playing the game...