Throwing in my experience here. I’m also running on Kinsta w/ AIP. Wp-config was deleted last night and continued to be deleted every 35 minutes after uploading a new copy. I reverted to version 2714 and this has prevented the issue for 12 hours now. The only remaining issue I see is that the /wp-admin/ pathway does not redirect to the login.php or wp dashboard in the backend. Just a blank page w/ nothing in <head>or<body> tags. Contacted AIP support and was met with absolutely no help at all. Kinsta support was great as always.
