95% of the time you will experience that your flipbook processing is queued and begins uploading/updating immediately.
On rare occasions, though, many users initiate processings simultaneously and a waiting period will form in that queue.
The queue will usually dissipate in a matter of minutes, and your flipbook will begin processing, and then be ready for use.
We are continuously working to improve performance and reduce queue time.
We thank you for your patience :)