Pooling Profile Errors in Mule FTP 1.4.1 Connector - configuration

Question

I'm using an FTP connector to read a CSV file. The application is an example app out of Exchange at ftp.devrel.mulesoft.com.
It all works fine when the "Pooling profile" in the FTP Config is set to "use default connection pool configuration". Test Connection returns successfully.
If I change the "Pool profile" to Edit inline, and keep all default settings, the connection test fails with the following error:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'FTP_Config':
Cannot create inner bean '(inner bean)#3393fd09' of type [org.mule.runtime.module.extension.internal.config.dsl.connection.ConnectionProviderObjectFactory$$EnhancerByCGLIB$$fc09cb67] while setting bean property 'connectionProviderResolver';
nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#3393fd09': Cannot create inner bean '(inner bean)#52e62e2e' of type [org.mule.runtime.api.config.PoolingProfile] while setting bean property 'poolingProfile';
nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name '(inner bean)#52e62e2e': Unsatisfied dependency expressed through constructor parameter 3: Could not convert argument value of type [null] to required type [int]: Failed to convert value of type 'null' to required type 'int';
nested exception is java.lang.IllegalArgumentException: Cannot convert value of type 'null' to required type 'int': PropertyEditor [org.springframework.beans.propertyeditors.CustomNumberEditor] returned inappropriate value of type 'null'
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'FTP_Config': Cannot create inner bean '(inner bean)#3393fd09' of type [org.mule.runtime.module.extension.internal.config.dsl.connection.ConnectionProviderObjectFactory$$EnhancerByCGLIB$$fc09cb67] while setting bean property 'connectionProviderResolver';
nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#3393fd09': Cannot create inner bean '(inner bean)#52e62e2e' of type [org.mule.runtime.api.config.PoolingProfile] while setting bean property 'poolingProfile';
nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name '(inner bean)#52e62e2e': Unsatisfied dependency expressed through constructor parameter 3: Could not convert argument value of type [null] to required type [int]: Failed to convert value of type 'null' to required type 'int';
nested exception is java.lang.IllegalArgumentException: Cannot convert value of type 'null' to required type 'int': PropertyEditor [org.springframework.beans.propertyeditors.CustomNumberEditor] returned inappropriate value of type 'null'
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