mriqc: Problems with SpikesMask when running more than one participant

Running mriqc from inside singularity container created with docker2singularity and poldracklab/mriqc:latest from dockerhub.

Run params were:

Settings={'bids_dir': '/data/Xscanner/bids_mriqc_test', 'write_graph': True, 'testing': False, 
'hmc_afni': True, 'hmc_fsl': False, 'fft_spikes_detector': False, 'n_procs': 32, 'ants_nthreads': 8, 'output_dir': '/data/Xscanner/mriqc_single_node/output', 'work_dir': '/data/Xscanner/mriqc_single_node/work', 'verbose_reports': True, 'float32': False, 'ica': True, 'no_sub': True, 'email': '', 'fd_thres': 0.2, 'webapi_url': 'https://mriqc.nimh.nih.gov/api/v1', 'webapi_port': None, 'upload_strict': False, 'deoblique': False, 'despike': False, 'correct_slice_timing': False, 'report_dir': '/data/Xscanner/mriqc_single_nod
e/output/reports'}

Got error:

2017-06-28 16:12:34,261 workflow:INFO ***********************************
2017-06-28 16:12:34,261 workflow:ERROR could not run node: workflow_enumerator.funcMRIQC.ReportsWorkflow.SpikesMask.a21
2017-06-28 16:12:34,261 workflow:INFO crashfile: /data/Xscanner/mriqc_single_node/output/logs/crash-20170628-152645-varadajc-SpikesMask.a21-2ac87aca-2936-40ef-82f6-332605ce5a65.txt
2017-06-28 16:12:34,261 workflow:INFO ***********************************
Traceback (most recent call last):
  File "/usr/local/miniconda/bin/mriqc", line 11, in <module>
    load_entry_point('mriqc==0.9.6', 'console_scripts', 'mriqc')()
  File "/usr/local/miniconda/lib/python3.6/site-packages/mriqc/bin/mriqc_run.py", line 304, in main
    workflow.run(**plugin_settings)
  File "/usr/local/miniconda/lib/python3.6/site-packages/nipype/pipeline/engine/workflows.py", line 590, in run
    runner.run(execgraph, updatehash=updatehash, config=self.config)
  File "/usr/local/miniconda/lib/python3.6/site-packages/nipype/pipeline/plugins/base.py", line 279, in run
    report_nodes_not_run(notrun)
  File "/usr/local/miniconda/lib/python3.6/site-packages/nipype/pipeline/plugins/base.py", line 101, in report_nodes_not_run
    raise RuntimeError(('Workflow did not execute cleanly. '
RuntimeError: Workflow did not execute cleanly. Check log for details

I have attached the error file.

I do not get this error if I only run one participant at a time.

crash-20170628-152645-varadajc-SpikesMask.a21-2ac87aca-2936-40ef-82f6-332605ce5a65.txt