In PF2e, I have made a goblin actor and I want to make it ride a medium sized mount (a wolf animal companion).
I have activated the Adjust Rider Size
When the goblin mounts the wolf, the token size gets reduced to 0.65 as expected.
But when the goblin unmounts the wolf, the token remains at 0.65.
If I open the Token Appearance setting, the width and height are both 0.65 and the lock icon is set on "locked". If I unlock the setting, it immediately jumps back to 1 and remains at 1 if I relock the setting.
(tested on a new world with no other active modules)