What is the term used to describe the low-level, lurking, residual state that surfaces when a situation activates suppressed feelings, behaviors, and cognitions associated with the original crisis?

The term is called family transcrisis

Explanation:

Family transcrisis occur when unresolved feelings, behaviors, of a crisis that have been lying dormant reemerges due to situations that reactivated these reactions which is not related to the current circumstances. Egs of some transcrisis statements you can hear are " just like before"

"We just cannot get this right"

A transcrisic most times reacts to a traumatic event which had been repressed and directs the reaction to another event.