Thodorisdm
Subscriber

I would like to give an example of the locations these left handed faces are created. 

In the first picture you can see the poor element at the outer part of the interface (stationary domain). In the 3rd picture you can see the poor element at the inner part, right below of the location of the poor element in the outer part. 

There is no corner, or sharp angle, I dont know what has gone wrong.