using the evtmetagen module with the default values for experiment/run results in:
[warning] there is no module that provides event and run numbers. stop processing

in framework/core/src/eventprocessor.cc:156 the master module is determined by comparing the eventmetadata object from the data store with previouseventmetadata, which is initialized with 0/0/0 for event/run/experiment. surely there must be a better way to check wether an object exists?

also, the evtmetagen module currently doesn't initialize its data store object:
[error] initializeactive is false while you try to create an object eventmetadata under edurability 0 for first time.