Is "JIRA Suite Utilities" required for "Issue Alternative Assignee" plugin?

Question

Does anyone know if "JIRA Suite Utilities" is required for "Issue Alternative Assignee" plugin?

Our customer recently upgraded their JIRA instance to 6.1.7 from 5.1.5 with "Issue Alternative Assignee".  Then they have a problem that Transition button doen't function as expected.  After installing "JIRA Suite Utilities",  button is available again.

Thank you in advance,

Jobin Kuruvilla [Adaptavist] · Accepted Answer

Most likely you had another workflow element that was using JIRA Suite Utilities plugin. I don't think the plugin depends on JSU (Jamie can correct me if I am wrong ;) ).