Custom DataTypes don't show members in client

[rafaeljob]

Description

I'm not able to properly display the members (structure fields) of a custom DataType which may be the reason on why writings are also not working.

Background Information / Reproduction Steps

I have followed the example provided under master\examples\custom_datatype in which I have successfully created the DataType node, VariableType node and the Variable node. These are displayed under UA Expert.

As presented in the picture below, the DataTypeDefinition does not show the StructureDefinition.

Is there something missing in the example provided ? Or is it a limitation of UA Expert ?

Checklist

Please provide the following information:

• open62541 Version (release number or git tag): v1.4.0-rc2
• Other OPC UA SDKs used (client or server): UA Expert
• Operating system: Linux on ARMv7
• Logs (with UA_LOGLEVEL set as low as necessary) attached
• Wireshark network dump attached
• Self-contained code example attached
• Critical issue