Originally Posted by RZetlin
Looks like the update broke Calibre.
I cannot side load epubs anymore.
How did it break? Did you get a message about unsupported firmware? If so, follow the instructions in the message - open the driver config and select the "Support newer firmware" option and then try again.
If you are getting another error message, can you please take a copy and post it. Maybe PM it to me so I can tell.