Projects are not available in the project list dropdown when creating a new filter

Summary

Some Projects are not available in the project list dropdown when creating a new filter.

Environment

Jira Cloud

Diagnosis

You are unable to select a project when running a search in Jira.

Cause

User access permissions are missing on the project.

Solution

A user should have adequate access to the project to view it in the project list dropdown or add it to JQL while creating a filter.

Details on how to provide access permission to different types of projects (team-managed and company-managed) can be found in the below documents.

1. Permissions for company-managed projects

2. Team-managed project permissions