Learning, software acclimation, DB queries.
Learning curve, acronyms, lack of functionality, lack of learning resources, lack of efficiency, lack of organization
Advice to Potential Interns
Ask questions of your mentor, don't be afraid to tell them "I don't know".
Advice to Management
Provide a program for new hires/interns that helps to acclimate them to their teams, OR make sure that documentation is consistent across platforms/teams.