Since updating to Anki 2.1.35 on MacOS the facility to detect duplicates when adding new cards appears not to work any more. When adding a new card with a ‘front’ field that I know already exists, the field does not glow red or alert me in any other way to the existence of a duplicate entry.
I tried downgrading to the previous version by selecting the “Downgrade and Quit” button, then installed the previous version. However, upon starting Anki after that I receive a dialog box saying that Anki 2.1.35 has been released, but I am unable to click any of the buttons:
I also see the dialog box for Anki to sync but this simply hangs and never ends:
Does anyone know how to resolve this issue? Could it be a bug in 2.1.35 which has corrupted the database?