Eta decay to 4 muons via double dalitz.

My goal is to create a rare eta decay to 4 muons via the Double Dalitz process.

I followed the steps in the contribution guide. I was able to go through every process, but there was an bug when checking for convention correctness of my event type.The bug reads "cannot find the signal particle and cannot determine the inclusive mode. This did not hinder my process, but I would like to know if this needs correcting or what may have caused it. Thank you so very much.