Your Jira contains many projects, not all of them involve designers, so not all of them need to be connected to Creative Cloud.
In order to configure which projected include the Mixin for Adobe Creative Cloud and Jira and which do not go to Add-ons (or Apps) in your Jira Settings (you will need be a Jira admin to do this).
Under Mixin for Adobe Creative Cloud in the sidebar click Configuration
To add the Mixin for Adobe Creative Cloud and Jira to a project search for the project name or key in the Select Addtional Project to Connect section.
Click on the project's name to select it, then hit the check-mark to add it. Click the X if you'd like to cancel and search for a different project.
To remove the Mixin for Adobe Creative Cloud and Jira from a project, click the X next to the project's name in the Connected JIRA Projects section.