Bulk Delete issues

Within the past two weeks I have been getting error messages when attempting to bulk delete new articles with the following message:

You are not allowed to move this item to the Trash.

I get hundreds of articles daily and not all are appropriate for my site so I weed them out, but getting the above error message when I select them all to move to trash.

I am signed in as the admin, I’ve checked to ensure that no one has made any changes to my profile and that I am still the admin. Also getting sent back to the WP-Admin login during the session sometimes as well.

Any thoughts?