https://www.theregister.co.uk/2019/12/16/chrome_79_update_a_catastrophe_for_android_users_with_webview_apps/

A change to the location of profile data in Chrome 79 on Android, the new version rolling out now, means that applications using the WebView component lose data stored locally.

"This is a catastrophe; our users' data are being deleted as they receive the update," complained one developer.