Pushover alerts - tests works - alerts don't

I am testing pushover, push messages. I have set a temperature exceeded alert. The “Test” button works fine, and the message is received on my phone. And displays on screen (windows 10)

When the temp alert is triggered, it issues an alert on the WD LED, main screen, an alert pops up in the message area on lower right of the Windows 10 screen, but no message is received by the phone.

Any ideas why the test works but not the actual alert?

Reinstalled WD and it started working.