SAP Lumira 2.0 UNDO functionality stop working after Upgrade from DS1.6

Hi,

Recently after upgrading to Lumira 2.0 i found the the existing functionality "UNDO -Back" button code is not working as expected.

Scenario

Back button click once nothing happens, on second click it reset the application to default view (initial state).

I created new application with Lumira 2.0 still the same issue, However testing the same application with DS1.6 is still working as expected.

Back Button Code

State.backOneStep();

Cross-tab Code

DS_1.setFilter("0COUNTRY", CROSSTAB_1.getSelectedMember("0COUNTRY"));

Has anyone experienced this after upgrade or with new application?

Highly appreciate your response, thanks

Regards,

Fahad