What I would suggest is deleting everything from your scene then set up your blank scene as your preferred preference and save. Exit Poser and restart, it should start a bit faster and come up with a blank scene.
Now when you load any figure, such as A3, it should load without the foot problem.
You will still have to turn off the IKs due to Poser turning them on.
There is a cr2 hack that keep the IKs off so long as you don't save the figure back to the library.
don't remember the wording off hand, sorry. Maybe some else does.

I must remember to remember what it was I had to remember.