When you say the pants didn't work properly, what do you mean?It's definitely happening because you deleted some bottoms though, that's for sure. You can't delete the weird pants/dress combo either? The more info you can give me on what you did and what happened helps me out a ton! Then I can re-create the bug and find a fix for it :)
Clients not accepting outfits that match perfectly is a well known bug and will be fixed in the next update. If you come across an impossible client, just delete them.
Oh right, the babydoll item was a test, I should not have added it to the game haha. It doesn't have a graphic for the other skirts, so it may show up invisible on some clients if you own it. Although I'm confused about the layering issue you mentioned. What were you trying to achieve with the details?
Editing garments is not a feasible option, sorry :( once the design is finished, it saves it into a single image and all of its data is lost. Saving the data for each garment would just crash your RAM. I may have made the system a bit too complex, haha.