I'm looking for a word, compound adjective or very short phrase that could be used to describe something, such as a parcel delivery, that is affected by an issue. What I'm looking for is supposed to sound formal or "technical". The only thing I could think of was "issue-affected" but Google showed me I had just made that up or "under issue" but the meaning of that (if it actually has any) is not what I'm looking for.

An example of use of the word would be:

Deliveries which are complete, pending or issue-affected

Thank you very much