When I go to ESS "My Investigations" Section it hangs on Loading. We are at Splunk Enterprise v7.2.3 and Splunk Enterprise Security v5.2.2. I looked at the Deployer where ESS was installed and noticed the " My Investigations" was named "Investigations. On the SHC the name is "My Investigations"
The fix was to go to Configure -> General -> Navigation. On the Edit Navigation Page, remove the My Investigations View and Add a New View called Investigations. Save and restart Splunk.
Yes, since the app preserves local navigation settings, any navigation changes due to release changes need to be updated manually. Win some / lose some 🙂