We have a process which has a start option that should prevent a process from starting when one is already running. That option is checked for all of the processes and this should prevent two processes from being started at the same time. Could you explain why it is happening?
If you select the "Do Not Start A New Process If One is Already Running" check box, only one running process instance is allowed to auto start for each object instance at any given time but if this process is triggered via System Action defined in the Blueprint this setting does not apply as it is not auto triggered event. This is working as designed.