How can you explain this? (not a valid selector)

Until today, I thought that code errors like these:

where happening because the referenced element was missing. Today I saw this and I have triple-checked and the 3 dropdowns are there, named as they should. So what is it???

I have referred this to QA for evaluation.

Hi George,
This issue has been resolved. Please let us know if you’re still seeing the error. Thanks!

@marlowe-shaeffer Hi there, indeed it’s resolved. May I please know what to do/not to do in the future to avoid such unforeseen mishaps that could affect my site’s functionality (information integrity, visitor experience, etc)?

Thank you for the support.

@gemats Glad it’s working again! It wasn’t anything you did—just an unexpected bug on our end.