Internal failure occurred while resolving this field

I've run into a similar problem.

I have found no way to see the actual error in Log Insights either.

The error in the graph response looks something like this

"errors":[{"path":["myFunction"],"data":null,"errorType":"InternalFailure","errorInfo":null,"locations":[{"line":8,"column":5,"sourceName":null}],"message":"An internal failure occurred while resolving this field."}]

This does not trigger fieldInError = 1 in any log nor does it log the message or errorType.