Check selection: Verify your team/view selection in the dropdown
Linear filters: Ensure your Linear view includes unestimated issues
Permissions: Confirm you have access to the selected team/project
Check focus: Click outside any text fields
Close dialogs: Close any open modal windows
Browser refresh: Reload the page if shortcuts stop responding
Check connection: Verify internet connectivity
Refresh page: Reload if real-time sync stops working
Session state: Ensure all team members are in the same session
Check permissions: Verify you can edit issues in Linear
Team settings: Confirm estimation is enabled for the Linear team
Re-authenticate: Log out and back in if token expires