Still no library and now for the last few days the Echo no longer remembers the last place "read" on my audiobooks apart that is from the last audiobook I've listened to. Alexa simply tells me that I've finished the audiobook and then starts it from the beginning. I've spoken to Echo support, and, as usual, they display concern but then nothing changes. Very frustrating.
BTW, over the last few days Alexa seems far less responsive than usual especially as regards getting to her respond initially when I use the wake word.