Thanks for reporting your observation. The periodic crash of the volume viewer (and failures to display micrograph thumbnails in CryoSPARC Live) is a known issue that we plan to address in a future CryoSPARC release. For now (as of CryoSPARC v4.6.2), we recommend restarting the command_vis server with the command
cryosparcm restart command_vis
either periodically (via crontab or similar) or when the issue is observed. A restart limited to command_vis is not expected to disrupt running CryoSPARC jobs.
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