Groovy - Enable "Access to unresolved expression" for "Run inspection by name"

Hi,

I am currently trying to find "Access to unresolved expression" in my groovy project.

I changed the settings as shown below:

When I now open a file and there is an unresolved expression it is bright red and clearly visible.
But when I analyze the whole project this particular Inspection does not get run.
When I try it via "Run inspection by name", I cannot find this particular expression at all, just the other one for untyped expressions:

What am I doing wrong? 

My "About IntelliJ IDEA" page:
"IntelliJ IDEA 2018.2.5 (Ultimate Edition)
Build #IU-182.4892.20, built on October 16, 2018
Licensed to <removed>
Subscription is active until December 9, 2018
JRE: 1.8.0_152-release-1248-b19 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
macOS 10.13.6"

Many thanks