What are the Potential Issues with Agile approach

Potential Issues with Agile approach are articulated below -

1. May not apply to large & complicated projects
2. May not be suitable to all organizations and people
3. Delivered solutions may not be scalable to large volumes of users/transactions/workload/data
4. Delivered solutions may not be adaptable to meet future business needs.

Reference(s) -

?-         Icagile, SCRUM, Atlassian & Agilefaqs blogs

-         www.scrum.org

-         www.scaledagileframework.com

-          www.agilekrc.com

-         www.agiletestingframework.com

-         www.scrumalliance.org