a baffling problem; I faced the knotty problem of what to have for breakfast; a problematic situation at home.
We are deeply concerned to get out of this problematic situation.
Identifying the problematic situations is the first step to resolving them.
As will be discussed later, pessimistic session locking has several problematic situations that need to be addressed, such as the cleaning up of abandoned locks.
But history shows that steep tax hikes cause problematic situations, according to British American Tobacco Japan, which sells Kent, Kool and Lucky Strike in Japan.