We are running JIRA (v4.4.3#663-r165197) with the JIRA Subversion plugin version 0.10.5.4_01. When i click the 'Subversion commits' link, the entire Activity box disappears.
The JIRA Subversion plugin compatibility chart shows that 0.10.7 should be used with JIRA 4.4. You should upgrade the plugin.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.