I am constantly visiting different communities, blogs etc. (official and unofficial) and it seems there is no solution. Any update of EndNote or OS causing many issues and inconvenience for us as users.
I like idea of EndNote and EndNote web but I cannot afford to risk my career and my productivity with this kind of issues. It seems there is miscommunication or no communication between EndNote and Apple.
One of recommendation provided to me was move to Microsoft it works better there, another one was move to another solution, etc.
I am long time user and I hope issue would be addressed soon, otherwise I am not sure how long we will be able to wait for a solution.