Canon Singapore issues advisory on Counterfeit Canon EF 50mm f/1.8 II Lenses. Here’s the link: http://support-sg.canon-asia.com/index.jsp?fuseaction=support&prod_type=notices-digitalcameras-conterfeit-ef50mmf1.8ii
Out of the blue, you’re getting twain errors, twain not found etc. Try this fix! It worked for me. Kudos to Jeff Widmer!!
Firmware 1.1.2 update for the Canon EOS 7D Mark II is up on the USA site. Here’s the link: https://www.usa.canon.com/internet/portal/us/home/support/details/cameras/dslr/eos-7d-mark-ii?subtab=downloads-firmware
According to Canon Rumors, there is/was a Canon Service Notice for the EF 24-105 II Lens. Here’s the link for more info, details if you own the lens. http://www.canonrumors.com/service-notice-for-the-canon-ef-24-105mm-f4l-is-ii/