Unable to use Function dropdown in Chronograf GUI in sandbox docker

Just downloaded the sandbox today and trying the Kapacitor Alert tute.
When creating the Queries/Second query, the Function dropdown does not dropdown.

I notice that Kapacitor does not appear under Configuration like it does in the sandbox video (Video: InfluxData Sandbox April 2017) nor under Alerting like it does in the tute. However I thought I had got around that issue by setting Kapacitor up directly in here…

Just updated to the latest sandbox and this issue has gone.