If the Released date under Payrun progress page is blank, that means that there’s a Release date set when the payrun was processed
This is how the payrun is conducted when the release date is set automatically:
Step 1: Go to 
Step 2: Click on 
Step 3: Look for the 
tab at the top. Complete the necessary details.
Step 4: On the Payslip Release option, click the Selected date after Approval and choose the Release date:
Step 5: Click on 
Once you have approved the payrun, go to Payrun Summary page below and it will show no Released Status is empty since you have set a specific Release Date:
If you wish to manually release it, you can click on the ‘Release or Release All’ button and you’ll receive a confirmation message that it has been released, however, the Release status will remain empty or blank.