Poser 6......
I have a figure lying on the ground...I have dynamic cloth...ran a sim..it was looking good.
Added a second figure. posed this on the ground...went to do a simulation of the second cloth and all of a second the figure is standing in the default pose, plus the first person's cloth is now back to square one.

Is it possible to do multiple figures with dynamic cloth? Do you have to lock them somehow so the second sim doesn't interfere with the first/ ?

Humankind has not woven the web of life. We are but one thread within it.
Whatever we do to the web, we do to ourselves. All things are bound together.
All things connect......Chief Seattle, 1854