Unable to save/share items into a shared notebook

[chonky 2]

We have a number of shared notebooks we put things in for each other and now I can't access them in new version. They appear in the note roster, but unable to save to them directly from the share arrow e.g. on safari or other applications. So i have been saving to my inbox and then again having to move to another notebook. 

Meanwhile it's taking forever for notes to synch even into the inbox, I''m letting phone run for hours and there's no progress on notes being saved that have been queued up.