Symptoms

1. When navigating to Projects > the desired Project, JIRA may not display the project's versions when browsing on the Project Summary page:
   
2. Whether JIRA is integrated with Bamboo, when navigating to Projects > the desired project > desired version, JIRA does not display the 'Release' tab as it should:
   

Cause

There's three possible causes for this misbehavior:

1. 'Fix Version' may be set as 'Hide' on the project's Field Configuration Scheme.
2. Incorrect Application Link Configuration;
3. JIRA Bamboo Plugin may be disabled;

The #2 and #3 points only will occur if there's an Application Link between JIRA and Bamboo.

Resolution

Cause 1

• For the #1 cause, check the behavior for the 'Fix Version' field under the project's 'Field Configuration Scheme'. It must be set as 'Shown'.

Cause 2

•  For the #2 cause, double check the application link between JIRA and Bamboo. When using Trusted Application as authentication module, check whether the 'URL patterns' are set according described here.

Cause 3

• For the #3 cause, check whether the JIRA Bamboo Plugin is enabled in 'Administration > Add-Ons > Manage Add-Ons'. It will be displayed on the 'System Plugins' session. It's worth disable/re-enable it.

After that, both 'versions' and 'Release' tab will be displayed as it should: