For all people following this topic: There is a new software-version for Sequoia which works on my Apple again: You can find the download here: https://www.canon.de/support/consumer/products/scanners/imageformula/p-series/imageformula-p-215ii.html?ty...
I am facing the same problem with Sequoia. My workaround is to not delete any pages within CaptureOnTouch and save the scanned documents by pressing enter on the keyboard. I think the UI of Sequoia prevents these old style confirmation windows in the...