Reset the panels by following the below steps:
https://docs.tibco.com/pub/wf-as/9.0.5/doc/pdf/IBI_wf-as_9.0.5_users_guide.pdf?id=4
Accessing TIBCO WebFOCUS App Studio Help Content, page 74
Reference:
https://docs.tibco.com/pub/wf-as/9.0.5/doc/pdf/IBI_wf-as_9.0.5_users_guide.pdf?id=4
Accessing TIBCO WebFOCUS App Studio Help Content, page 74
Case: https://supportapps.tibco.com/sr/case/789/02235789.htm