Hi All,
If anyone is interested, I've just updated the flow in the flow library to use the link call node which replaced the switches used previously for the link out nodes and therefore simplified the overall picture. The only drawback of the link call node is that in case of non-returning calls (like when the result of a subflow is sent to be displayed by a ui node) it always logs a time out after the configured amount of time.
Best regards,
r0ller