At the moment, switch node does not accept more than one incoming connection.

There is no indication in this direction in the specification.

The current workaround is to put in front of the switch node another node (noop operation).

In the attachment the SWF file which lead to the following error:

[ERROR] Caused by: org.kie.kogito.process.validation.ValidationException: This type of node [20, Shipping Ready] cannot have more than one incoming connection!
[ERROR]     at org.jbpm.workflow.core.impl.ConnectionImpl.connect(ConnectionImpl.java:83)
(...)