Hi amplitude team, I wanted to raise an error message that I encountered when saving changes to my experiment. If i may know what triggers this error? Because this happened to a couple of experiments with the same error message and we don’t use any value ($1,$2,$3) that was stated in the error message. Thank you!
![](https://uploads-us-west-2.insided.com/amplitude-en/attachment/d0345a94-724a-4834-bfbf-776d34a718ed.png)
![](https://uploads-us-west-2.insided.com/amplitude-en/attachment/3e42087c-4fca-49a2-b26b-a30a375c0ecd.png)