For anyone with a similar problem, getting this to work with Alfred 3 requires editing workflows.php.
Right-click on Asana QuickTask in your workflows and select "Open in Finder".
Open the workflows.php file with text editor and replace the Alfred-2 and Alfred 2 with Alfred-3 and Alfred 3 respectively. It will work after doing this.
Asana Quick Task
in Share your Workflows
Posted
This solved it for me.