Many thanks for getting in touch with us! We're happy to have you on board 🙂
When saving albums, do you mean to the Your Music feature? If so, there is a limit of 10,000 tracks that are allowed to be saved in this feature.
Right now, Spotify will remove any queued tracks if you quit the app. You can read more on the Play Queue over at this handy link.
We hope this helps further.