I have run into an issue and suspect Ankihub to be the cause. Basically, an upper classmate of mine went through all of Anking and tagged each card tailored to our in-house lectures and shared it with the class (bless him). The issue is, when I import his tagged collection, only about 500 out of 12000 cards are tagged correctly and the rest remain unchanged. I suspect the cause is that my cards (thanks to ankihub) were updated more recently than his V11 classic Anking. How do I remedy this?