UnboundLocalError with decompose_fit()

[gretherv]

Hello! I am trying to use decompose_fit() to decompose a set of denovo signatures into a catalogue of reference signatures. I am passing in the catalogue using the signature_database parameter. Unfortunately, I keep getting the following error:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File ".../SigProfilerAssignment/Analyzer.py", line 28, in decompose_fit
    decomp.spa_analyze(
  File ".../SigProfilerAssignment/decomposition.py", line 822, in spa_analyze
    final_signatures = sub.signature_decomposition(
  File "..../SigProfilerAssignment/decompose_subroutines.py", line 446, in signature_decomposition
    ) = ss.add_remove_signatures(
  File "..../SigProfilerAssignment/single_sample.py", line 948, in add_remove_signatures
    sub.get_items_from_index(allsigids, selected_signatures)
UnboundLocalError: local variable 'selected_signatures' referenced before assignment

Please let me know if you are able to offer me any help!