As of tonight (July 30/31, 2026) I can't post explanations for release date changes

For years I have been providing accurate information about release dates of films for IMDb.  Tonight, for the first time, it won't let me post.  I fill out the city, date, etc. as usual, and then put in the explanation with the link to newspapers.com as usual, but I get a form that turns pink, with this message:

"This item has been rejected. You need to correct this item before it will be accepted.

•  We could not save your explanation. Please try again. If the issue persists, try using a different browser or disabling any extensions."

Does anyone know what is causing this?  I'm doing nothing different from what I have done for years: same procedure, computer, browser (Chrome), etc.