The phrase "concern issues" refers to problems or topics that someone is worried or focused on. It could be something that they feel needs to be addressed or resolved. Full definition
The examination will test the knowledge of the new driver concerning issues of rules and regulations, signs and signals, driving techniques and ideas. (wannadrive.com)
This study concerns an issue with measurements of global temperature. (informath.org)
Whilst the defensive issues have been concerning the issues in the attacking third have been more of an issue. (anfieldindex.com)