After upgrading to SQ 7.4, the latest version 2.1.2 of TFVC (sonar-scm-tfvc) is not supported. They did fix SQ 7.4 compatibility but have not released any new version since 2.1.2 (May 2016).
I submitted an Issue to see if they can build a new release.
I just wanted to let you know because list of plugins supported shows TFVC.
Unfortunately, I had to roll back production SQ to version 6.5 until this gets resolved. Thx.