Update: This issue has been resolved, thank you for your patience! If your Google Assistant Applets are still affected, we recommend disabling, waiting 2-3 minutes, and then re-enabling them to fix this issue.
Recently we started receiving reports from our users that some of their existing Google Assistant phrases created via IFTTT are no longer working as expected.
Instead of voicing a response set up through the Applet when you say a specific phrase and running an action, the Google Assistant would run a default search based on the phrase you said.
We will be working with the Google Assistant team to identify and resolve this issue.