Good day, the CanonScan Lide 400 ran without any problems under OS X Mojave.
Now my Mac is running OS Catalina 10.15.4 and there are no problems either.
Kind regards

Hello, I had no problems with the Lide Scan 400 under OS X Mojave. Where there are some problems with the driver, Canon IJ Scan Utility Lite is under OS X Catalina. It only scans one page, then an error comes up. Canon is working on a driver update, but as I said and OS X Mojave I never had any problems. Greetings