Small numbers of showers crashing with 'malloc(): unaligned fastbin chunk detected 3'
A small fraction of my showers (I would say around 0.1%), when I run them on the cluster, are currently crashing with the error message:
malloc(): unaligned fastbin chunk detected 3
Unfortunately I am unable to reproduce the errors: When I re-run the shower with the same configuration and seed, it works just fine.
I am using the most recent FLUKA version, although my showers are electromagnetic (so only a small number of hadronic interactions should be happening).