I had a scenario today where some source elements of type reference were not showing in a map with 2 input schemas. Creating maps with just a single input schema seemed fine.
The highlighted element below did not show the child elements for some reason.
Yet the source schema looks like this.
And when using the schema in a single input map it was fine as shown below. The child elements were shown as expected.
After some investigative work I found the issue. The schema location path in the schemas where using absolute paths as shown here: <xsd:import schemaLocation=”base_cust_3_5.xsd” …
By changing the paths to a relative path as shown in bold <xsd:import schemaLocation=”.\base_cust_3_5.xsd“… did the trick.