If you deploy a ladder (or I'm assuming other siege equipment) it bugs out and acts like those slots are still on your person (3 slot ladders for instance don't usually allow me to pick up anything other than 1 weapon such as 1h sword, if I try to pick up a shield it drops the sword, I can however pick up 2 or 3 slot items still, but nothing more).
Also after throwing a ladder you still move like you have the 30+ stones of weight still on you, makes bringing ladders to the front lines a painful experience because you're fucked over even after throwing them and trying to pick up weapons or fight.
I admittedly haven't tested this since the latest update, but it's been an issue for over a year and multiple strategus versions, so thought I'd finally get a post about it.