Update to v4 failed (`check_fcv`)

Starting cryoSPARC System master process..
CryoSPARC is not already running.
configuring database
    error retrieving current fcv - got: {'featureCompatibilityVersion': '3.4', 'ok': 1.0}
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/spshared/apps/cryosparc3/cryosparc_master/cryosparc_compute/database_management.py", line 55, in configure_mongo
  File "/spshared/apps/cryosparc3/cryosparc_master/cryosparc_compute/database_management.py", line 105, in check_fcv
    actual_fcv = output_actual_fcv['featureCompatibilityVersion']['version']
TypeError: string indices must be integers
(base) [spuser@spgpu alphafold]$ cryosparcm status

Hi @lfr086,

Is it possible that there is another MongoDB process running in the background?
Can you ensure all CryoSPARC-related processes are not running (check out this section of the Troubleshooting guide), then try starting CryoSPARC again (cryosparcm restart)?