Error after updating to 7.x-1.0-rc4

Problem/Motivation

After updating to 7.x-1.0-rc4, a number of pages have the following problem. This does not affect all pages, but I am not sure what the common factor is. It might be all pages that currently have a redirect set, I'm not sure.
When trying to edit the page, the following errors occur:

Notice: unserialize(): Error at offset 0 of 12 bytes in RedirectController->attachLoad() (line 15 of sites\all\modules\redirect\redirect.controller.inc).
Notice: unserialize(): Error at offset 0 of 12 bytes in RedirectController->attachLoad() (line 16 of sites\all\modules\redirect\redirect.controller.inc).
Warning: array_merge(): Expected parameter 1 to be an array, bool given in redirect_list_table() (line 914 of sites\all\modules\redirect\redirect.admin.inc).
TypeError: Argument 2 passed to redirect_url() must be of the type array, null given, called in sites\all\modules\redirect\redirect.admin.inc on line 915 in redirect_url() (line 1417 of sites\all\modules\redirect\redirect.module).

I'm using Drupal 7, PHP 7.4.22