No ancestors found for AHF data

[milanq14]

I'm working with Amiga Halo finder data, and have the following files in my directory: .log .parameter .AHF_halos .AHF_mtree Should this be enough for ytree to work correctly? Any idea on why it is sot finding any ancestors for any of the halos? I am working with HESTIA simulations, and the error I am getting is:

AttributeError Traceback (most recent call last) Input In [42], in ----> 1 my_ancestors = list(a.ancestors) 2 print(my_ancestors)

AttributeError: 'AHFArbor' object has no attribute 'ancestors'

Thanks!