Character Controller doesn't slide, just stops dead

[MarkTanner]

Hello,

Very simple problem which I can't find the answer to:

I have a character controller (same code as the example demo using latest version of Bullet) and it works fine except: it doesn't 'slide' against a static TriangleMeshShape for the world, instead it just stops dead when it collides.

Suppose the character walks towards a box (even at an angle): it hits it, it stops/is stuck. The only way to remove the character is to walk backwards away from the box. Walking forward, left or right doesn't move the controller, whatever the angle the character hits the box from.

Is this expected behaviour or am I missing something? Basically as soon as there is contact, the character capsule won't move except directly away from the mesh.

Surely the character should slide, I mean that's a basic feature of a character controller? What am I missing?

I am grateful for any hints, many thanks!