I assembled my brand new PVC cage about 2 weeks ago and I have been running it before I get my new BP. One thing I notice is a slight smell when I open the lexan door. The smell dissipates very quickly and I can't smell it shortly after the door has been open. I can close the door for a few hours and then smell it again. If I sniff around , the smell seems to be from the clear lexan plastic hinges. It seems like the same Oder as I get when I open the door. Each day that passes it seems to get less and less. The identical PVC cage I already have had for 2 years doesn't have that smell. Should I be concerned with this ?