Password protected galleries won’t load after password submitted

If users are entering the password for a specific gallery and then are being shown the password input again, the issue is almost certainly caching. You either have server-level caching from your web host or you have added a caching plugin to your WordPress install. Sunshine tries to use a common WordPress method for disabling caching on Sunshine related pages but it does not work for some cache plugins. Most plugins offer some kind of option to exclude certain pages from being cached. It is recommended to disable caching for all Sunshine related pages.