Objects not displaying in camunda Modeller

Hi I am BPMN XMI from Enterprise architect and trying to import it into camunda modeler .Some times it works good and most of the time all the objects are under the pool and not visible . This problem occurs only if multiple pools are available in the BPMN diagram.

But my expected output was

What the problem with camunda ?

Pool has iscollapsed and isExpand option but changes not getting savd

Please share your BPMN 2.0 XML file so we can have a look.

This is probably an import / export bug between Camunda Modeler and Enterprise Architect.