I also installed Avasnt Mobile Back-up...
It seems to back-up too much??? or without checking some things???
Problem = I have about 200 contacts to back-up, but...
After a few weeks, I see now about 4400 contacts in the list...
Looks like every day, the same contacts are added again...
So they are all the same, copied several times again...
This is realy not normal, see screenshot I added here.
Thanks for solving the problem, or giving a hint to prevent that