Inability to publish listing

[TrilliumandFern]

A listing I've tried to publish comes up with a red banner at the top that simply says "Conflict".  The listing is a copy of a similar item with updated particulars and photos.  The listing I copied is a sold item only about 2 weeks old.  I'm using a laptop PC and Firefox.  I restarted the computer hoping that might fix the situation, but it didn't.  I tried writing a new listing from scratch but was being forced to use USPS for shipping options and this will be a UPS shipment.  What am I doing wrong??

[BagmakerSupply]

@TrilliumandFern  :  There a number of other threads about this - you might want to keep an eye on them for updates.

[TrilliumandFern]

Thank you, Bagmaker.  I was able to publish the listing this morning without difficulty.  Maybe it was just a temporary glitch.  The other threads I saw had similar but not identical problems.  Maybe I didn't look hard enough.