[rosemaryknits]

OH! I am having the same problems!

NOTHING that I sent to my kindle using "send to kindle" (which are on my amazon cloud) none of these will open.

My paperwhite isn't exactly bricked, but I do want to smash it with a brick right now. I am so so so disappointed in this update.

I poked around and I discovered this. Articles which I sent to my kindle and which I then downloaded from my cloud arrive onto my kindle as an azw3 file. If I connect to my computer, fetch the offending file using calibre, then send from Calibre, the same article now appears as an azw file and it opens perfectly.

so frustrating, but at least a work around.

I have not tested opening all file types.

Also, hooking it up to my computer causes the wifi to be knocked out. The only way I can hook up to wifi once again is to restart. So frustrating.

edited to add - Also this oddity - when opening a document, I can apply any of my custom pages with custom fonts, yet if I open "font and page settings" it tells me that custom fonts are not available. Weird.