It used to be possible to upload sgf files to a library. Now when you go to SGF library -> upload, it allows you to select a file, but does not actually upload the file. This persists regardless of whether adding to a collection, public or private. No error message appears - the game just does not upload.
We also lost connection with the server partway through the game, and it took upwards of 10 minutes to reconnect. This time actually counted against one of the players, and it wasn’t possible to pause during this time. The error we saw was “Internal Error unable to load game data. Please try again later”.