I have the version 18.104.22.168278 (I suppose this is the last available, I downloaded it yesterday) and it si very very slow to scroll the pages of the magazine that I have purchased. I installed it on my Windows 10, this is my first installation in general.
Many times I try to scroll but when it is not so slow it show the message on the title bar that it is blocked.
It is resolvable or it is a piece of software that sucks (sorry for this but sincerely it is unusable).
I guess it simply does not work as it should and they just don't care.
I have also installed Adobe Digital Editions on Windows 10 and the slow scroll makes reading digital editions of newspapers nearly impossible. One gets tired after a few minutes and stops. I tried a few versions for Adobe Digital Editions in the hope that some version will work properly but without luck.