Hi Community,
We have just released a change to our site that is intended to resolve this problem so we expect that anyone who has been experiencing this behavior should now be complete the Custom Item Specifics section of the listing process again.
If you continue to encounter this behavior after this point, please let us know by mousing over the "Help" tab within your account and selecting the "File Support Case" option. We apologize for any inconveniences this issue has caused.
-Mike