Issue 2: Thanks for the tip - works fine. I didn't know that the default epub reader on PocketBook is Adobe Reader.
Issue 3: Setting bookmark before closing file is a workaround but it is troublesome to remember and do it every time. I just started to read all books in FBReader which works fine but opening books by long pressing the file and selecting "Open with/FBReader" is troublesome too. At least I can still read books

I will check CoolReader - I was using it on Android smartphone some time ago - thanks for the link.
Apparently much more testing is needed for PocketBook to perform before releasing new software versions.
The change that I appreciate with this version although is:
- the improvement in the Dropbox synchronisation app. So far the file deleted on Dropbox online storage was not being deleted on PocketBook device - instead the file was re-uploaded from PB device back to the Dropbox online storage.
- the "+" and "-" buttons on the font size setting menu. I was having hard time to set the proper font size with the bar only in the previous versions of the software. Now the +/- buttons are making the job (finally) much easier.
I would love to see some more detailed changelog posted by PocketBook on its website with every new version of the software to be aware about new options and improvements. The one posted here
http://www.pocketbook-int.com/pl/sup...ok-touch-lux-3 does not say anything above the aforementioned changes as well as about the newly introduced "PocketBook Cloud" service.