Confirmed and fixed. Changing equipment rebuilds the character rig from scratch, and the new rig always started in its standing pose. Standing/walking/jumping get re-asserted the next frame so nobody noticed - but the postural states (ladder, rope, prone, sitting, flying) do not, so equipping on a rope left you drawn upright while still actually climbing. Those poses now survive the rebuild. Attack stances deliberately do not (the combat system owns those).

(On the dev branch - it will be in the next published build, not v32.)