I have an Azure Function app that I recently updated to point to a new Application Insights instance.

The new Application Insights instance is configured properly in Settings > Environment variables and it shows up correctly in Settings > Application Insights. Furthermore, if I directly go to the new Application Insights instance, I can see the log output from the Function App functions, so I know it is connected correctly.

However, when I look at my list of functions in the Overview page for the Function App, I am no longer able to see recent invocation details. I see the old ones up to the point that I cut over to my new Application Insights instance, but nothing further.

I double-checked everything in Environment variables and there is nothing there pointing to the old instance.

I think that somewhere, Function App, or perhaps the portal screen itself, is still connected to my old Application Insights instance. When I look at Overview > Properties, it does indeed name the old Application Insights instance. But I can’t see anywhere where I can actually change this. (Again, within Settings > Application Insights, it is pointed to the new, correct instance.)

How can I fix this?