Found this small bug in the latest version.

The FieldMappedOnOneToManyPattern global preference isn't copied to the project preference when you create a new project.

I have set it to {$EndEntityName}Collection and need to set it again for each new project.

Will check it out. Should be copied over, but as this is added after a main release because it was overlooked, it can be it wasn't implemented in full

Fixed in next build.