Need some advice

Our newest adoptee, Gypsy is having what I am assuming is separation anxiety issues. And while I know that is to be expected, I need some help. Nearly every time we place her in her crate and leave the house, she will poop and then walk in it. She tends to pace a bit in her crate. Her crate is not too big, I tried her in a couple different sizes and it happens no matter which one she is in. I have tried covering the crate with a sheet, I have tried giving her a KONG while in there, I have tried having her be in there for periods of time while I am home to get her used to crate. I have placed the crate right next to her play mates and cover them together so she can see him at all times. I leave the TV on so there is noise and talking when we are gone. She is never in there for more than an hour or 2 tops. She always goes out to potty just prior to going in, so that is not the issue. My husband is getting really frustrated with having to give her a bath every time we come back home and bleach down the crate.....not to mention the smell that hits you when you open the front door. She is for the most part completely house trained and is about 2 years old. She has been with us for a little over 2 weeks and has bonded quite well. Any thoughts on this?