This is hapenning right on start up.
I increased the box size to a value bit larger than the xmax, ymax and zmax values in the IC file. Now the code runs but there is no progress beyond
DOMAIN: Peano-Hilbert order done, took 0.052613 sec.
Arepo just keeps on running without any progress until the entire job execution time.
I wish to share the links to the IC, output dump, and param files but the forum doesn’t allow that. Please let me know if there is an alternative.