Based on the discussion at https://bugs.launchpad.net/mg5amcnlo/+bug/1860477 , modifying the back-end calls within the add_lifetimes function to use the syntax that Olivier suggested there.
@bcote , this should solve your issue.
Based on the discussion at https://bugs.launchpad.net/mg5amcnlo/+bug/1860477 , modifying the back-end calls within the add_lifetimes function to use the syntax that Olivier suggested there.
@bcote , this should solve your issue.