An issue was detected in AWI where a external dependencies cannot be opened within a Workflow Editor, if it has a calendar keyword depending on the workflow where the external dependency actually is defined.
In AWI version 12.3.4 and 12.3.8 a empty error message without anything appears,
21.0.3 at least a message says that there is an error, and the AWI log has more information
Within AWI log the following error message shows up.:
http-nio-8080-exec-7 [ERROR] V1238:22/HEA/SUPPORT 0 0000000001042014 [com.uc4.webui.common.errorhandling.Safe] - Unable to invoke method onSelectionChanged in com.uc4.ecc.widgets.canvas.gwe.gwt.client.ui.rpc.WorkflowServerRpc
com.vaadin.server.ServerRpcManager$RpcInvocationException: Unable to invoke method onSelectionChanged in com.uc4.ecc.widgets.canvas.gwe.gwt.client.ui.rpc.WorkflowServerRpc
Release : 21.0.3 and 12.3.8
This is a defect of the AWI component.
This bug is fixed in version 21.0.5, it will be available in a near feature.
A problem has been solved where external dependencies in Workflows could not be opened if a Calendar Event was used in a sub-Workflow and as dependency within the parent Workflow.