How to detect dialog windows?

[big_smile]

I need Keyboard Maestro to detect the following dialog box:

It is from the plugin Awesome TTS for Anki 2.1.

The text on the dialog box usually changes, but it will always have "During processing, there were".

How can I detect this box?

I have tried using:

Pause Until Conditions are Met
--> Front applications contains During processing, there were

But it doesn't seem to work. Any ideas?

PS. Keyboard Maestro is awesome. It is one of the best apps on Mac!

[michael_zahn]

You can use Pause until a Button with name "OK" is visible!

and then let KM click that button

[big_smile]

Thank you so much. That worked perfectly. Thanks again!