"Error fetching updates" with "Receive posts and notifications real-time" seting enabled
Not sure if it should be here or on the pleroma issue tracker, but I see it in the FE, so I start by opening it here.
With the option "Receive posts and notifications real-time (Not recommended, experimental, known to skip posts)" enabled, the notification TL sometimes gives the error "Error fetching updates". When this happens with the setting off it's because the request failed and at the next attempt the error goes away. With the setting enabled however, the error remains. New notifications are still received, but even when new notifications are received, the error still remains (see screenshot).
So afaict there isn't actually a problem for getting updates, yet the fe says there is. Checking off the option (and optionally back on again) makes the error go away.