Glad you enjoyed it!
The current content is the prologue plus first 2 chapters, and I add a new chapter with each major update (every 2-3 months).
I've never encountered the first issue you mentioned, but will keep an eye out for it.
The second is completely intended but does not give you time saving. All copies of the same action do indeed share progress in the queue. So if you 90% something, cancel it, the go back it later, you only have 10% left to do. But once you finish the first one, the next one will have to start from scratch.