Project Server 2013 - Queue job - Waiting to be processed

Issue

Post setting up a new PWA instance, the queue jobs are stuck with the message "Waiting to be processed".

Analysis

Ensured that

1. Central Admin shows the PWA instance is in Provisioned state
2. The services Microsoft Project Server Events Service 2013 and Microsoft Project Server Queue Service 2013 are running

Executed the below command in PowerShell

Get-SPProjectWebInstance -URL "https:server/pwa"

The output had an entry ProvisioningStatus as Failed.

Resolution

Executed the below command in PowerShell

Upgrade-SPProjectWebInstance -Identity "https:server/pwa"

This will take a while to complete, post which execute the command

Get-SPProjectWebInstance -URL "https:server/pwa"

ensure that the ProvisioningStatus is Provisioned now.