Hello,
I thought I had responded to your reply above, however I did so in an email and I’m not sure it was seen. Here is what I wrote:
Hello Again,
I used your suggestion and I discovered that there is a conflict with the translatepress-multilingual plug-in. When it's enabled, it defaults the posting date to the date of the last article posted. I have disabled this plug-in and the problem is gone. That's why you didn't see it when you went to the site. I'm going to use a different plug-in to see if that helps. If you have any other suggestions for how to resolve this issue, please let me know.
Thank you for your help!
Julie