After updating Yoast to 14.6.1, fatal PHP error involving XMLRPC

After updating to 14.6.1, my local still works, but pushing to the dev site on WP Engine causes a fatal error. Same plugins and versions are in place in both environments.

– I tried deleting Yoast and reinstalling from scratch, but the problem persists.
– I tried deactivating all plugins, but activating Yoast again caused the crash.
– The theme is a custom theme – updating Yoast on a barebones install with just that theme and the other plugins in place did not cause an error, so the theme is not causing the conflict.
– I can’t give the URL out in a public environment, but if there is a private support ticket option, I can tell you more.
– I see that a hotfix related to XMLRPC was released two days ago as per this issue: https://github.com/Yoast/wordpress-seo/issues/15694
Might it have broken something else in turn?

The error is:

[Thu Jul 23 21:40:04.472648 2020] [php7:error] [pid 20859] [client 97.107.188.94:25126] PHP Fatal error: Uncaught Error: Class ‘Yoast\\WP\\SEO\\Integrations\\XMLRPC’ not found in /nas/content/live/sitefolderhere/wp-content/plugins/wordpress-seo/src/loader.php:233\nStack trace:\n#0 /nas/content/live/sitefolderhere/wp-content/plugins/wordpress-seo/src/loader.php(202): Yoast\\WP\\SEO\\Loader->conditionals_are_met(‘Yoast\\\\WP\\\\SEO\\\\In…’)\n#1 /nas/content/live/sitefolderhere/wp-includes/class-wp-hook.php(287): Yoast\\WP\\SEO\\Loader->load_integrations(”)\n#2 /nas/content/live/sitefolderhere/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array)\n#3 /nas/content/live/sitefolderhere/wp-includes/plugin.php(478): WP_Hook->do_action(Array)\n#4 /nas/content/live/sitefolderhere/wp-settings.php(540): do_action(‘init’)\n#5 /nas/content/live/sitefolderhere/wp-config.php(125): require_once(‘/nas/content/li…’)\n#6 /nas/content/live/sitefolderhere/wp-load.php(37): require_once(‘/nas/content/li…’)\n#7 /nas/content/live/sitefolderhere/wp-admin/admin.php(34): require_once(‘/nas/content/li…’)\n#8 /nas/content/live/sitefolderhere/wp-admin/plugins.php(10): req in /nas/content/live/sitefolderhere/wp-content/plugins/wordpress-seo/src/loader.php on line 233, referer: https://sitefolderhere.wpengine.com/wp-admin/plugins.php

Thank you!