TauP resizing

Dear users

does any of you know why the taup package provides me the following warning?

Resizing a TauP array inplace failed due to the existence of other references to the array, creating a new array

when asking for arrivals for this model:

model = TauPyModel(model=“ak135f_no_mud”)
�phase_list=[“P”,“S”,“pP”,“sS”,“p”,“s”]

Thanks

Filippo