Marking the @manual before 'Feature:' should work as @skip
Expected result

Actual result

Could you try with 1.2.1 (serenity-core) and 1.1.4 (serenity-cucumber)?
The scenario status and report result page are correct.
But each steps status still incorrect.
serenity.version = 1.2.1-rc.8
serenity.maven.version = 1.2.1-rc.8
serenity.cucumber.version = 1.1.14

Could you try with 1.2.1, not 1.2.1-rc.8?
Tried again and the result still incorrect.

Should be fixed in 1.2.1-rc.5 and 1.1.18
Most helpful comment
Should be fixed in 1.2.1-rc.5 and 1.1.18