Completing the closing steps of the project

Based on what you learned on the close process, why can project managers sometimes be challenged with completing the closing steps of the project?
Research the Internet, what are some examples as to why a project may end prior to completion? What factors help with determining if the project should end early?
Who should be part of a lessons learned workshop? What are some of the questions you could ask during the workshop?
Text-

A Guide to the Project Management Body of Knowledge (PMBOK® Guide) – Seventh Edition and The Standard for Project Management (RUSSIAN)

ISBN: 9781628257007

Authors: Project Management Institute Project Management Institute

Publisher: Project Management Institute

Publication Date: 2021-08-01