Hello,
I am not sure why that is happening but it should definitely be fixed. If you could, please email our Customer Service dept at sales@everythingplasticcanvas.com :) I have given them a heads up on this and they will need to know some more information from you so they can see what the issue is and then try to fix it for you. They should reply within a few hours of you sending the email :) Thank you!
~Kristi @ EPC