August 3, 2020 at 2:27 pm
Trying to log into my site today, after a weekend automated upgrade of Kadence Blocks from v1.8.10 to v1.8.11, all users encountered a fatal error of “Too many redirects” or “There have been too many invalid login attempts for the username” with the URL of *Login to see link I rolled the site back to a pre-update backup point (last Thursday), when logins were working fine, but still encountered the error. I then reverted to the current backup point, deleted the kadence-blocks folder in /wp-content/plugins/ and was able to log in successfully, but (understandably) got a warning that my Kadence Blocks Pro plugin would not work without the underlying Kadence Blocks plugin. I reinstalled Kadence Blocks multiple times — from that warning prompt, from the Plugins/Add New tab, and by downloading the .zip file and uploading manually — and each time got the error at *Login to see link as soon as I activated the basic plugin. Same result after deleting Kadence Blocks Pro. It looks like the plugin is getting hung up trying to redirect to its options page, and that redirect setting is somewhere that’s not affected by deleting the plugin directories.
The problem doesn’t seem to be specifically related to v1.8.11 — we have three other development and staging versions of this site that all updated to v1.8.11 without problem — but rather to some related page or process that was broken or corrupted during the upgrade process. But I don’t know what or where that page or process is, or how to repair or remove it.
Throughout all these errors blocking login, the public side of the site continues to display without incident.