Approval workflows | Missing approval button in the approval email


Dear Smartsheet Community,

We created an approval workflow that was working well. Recently, we noticed that when an approval request is triggered, the YES and NO buttons in the approver email are missing. Initially, we suspected this might be due to the new Outlook system, but our tests ruled this out. Has anyone experienced a similar issue or knows how to restore the YES/NO buttons in the approver email?

Below is the workflow we are using:

Below the approver email without the approval buttons:

Many thanks in advance, as I'm losing my mind over this! :))