Difficult terrain has no effect on movement in PF2E

[theillway]

I created a region and added an environment feature, and used the dropdown to set the terrain to "Difficult". However, this had no effect on moving tokens through the space. I tried using arrow keys to move the tokens, holding ctrl+clicking, and dragging, and none of them applied a movement penalty.

[SetArk]

Same on DnD5e as per version 4.2.2