predicting structure of octamer
Hi,

I was trying to predict predict the structure of an octamer, and got the following error:

alphafold.data.templates.SequenceNotInTemplateError: Could not find the template sequence in 7a0l_A
Traceback (most recent call last):
  File "/mnt/nas/tools/alphafold_non_docker_v220/alphafold/data/templates.py", line 362, in _realign_pdb_template_to_query
    aligner.align([old_template_sequence, new_template_sequence]))
  File "/mnt/nas/tools/alphafold_non_docker_v220/alphafold/data/tools/kalign.py", line 98, in align
    raise RuntimeError('Kalign failed\nstdout:\n%s\n\nstderr:\n%s\n'
RuntimeError: Kalign failed
Traceback (most recent call last):
  File "/mnt/nas/tools/alphafold_non_docker_v220/run_alphafold.py", line 442, in <module>
    app.run(main)
  File "/mnt/nas/tools/anaconda3/envs/alphafold_non_docker/lib/python3.8/site-packages/absl/app.py", line 312, in run
    _run_main(main, args)
  File "/mnt/nas/tools/anaconda3/envs/alphafold_non_docker/lib/python3.8/site-packages/absl/app.py", line 258, in _run_main
    sys.exit(main(argv))
  File "/mnt/nas/tools/alphafold_non_docker_v220/run_alphafold.py", line 415, in main
    predict_structure(
  File "/mnt/nas/tools/alphafold_non_docker_v220/run_alphafold.py", line 185, in predict_structure
    feature_dict = data_pipeline.process(
  File "/mnt/nas/tools/alphafold_non_docker_v220/alphafold/data/pipeline_multimer.py", line 264, in process
    chain_features = self._process_single_chain(
  File "/mnt/nas/tools/alphafold_non_docker_v220/alphafold/data/pipeline_multimer.py", line 212, in _process_single_chain
    chain_features = self._monomer_data_pipeline.process(
  File "/mnt/nas/tools/alphafold_non_docker_v220/alphafold/data/pipeline.py", line 223, in process
    templates_result = self.template_featurizer.get_templates(
  File "/mnt/nas/tools/alphafold_non_docker_v220/alphafold/data/templates.py", line 960, in get_templates
    result = _process_single_hit(
  File "/mnt/nas/tools/alphafold_non_docker_v220/alphafold/data/templates.py", line 786, in _process_single_hit
    error = ('%s_%s (sum_probs: %.2f, rank: %d): feature extracting errors: '
TypeError: must be real number, not NoneType


Strangely, I can run the code successfullly in tetramer setting.