Unable to deploy, failing on slug prepare/upload

There is an issue in some of our shared environments where deployment fails intermittently on the “Preparing slugs” step. No other details are in the error log. Has anyone experienced this or can think of possible root causes? Deploying applications Starting deployment Preparing slugs E: Failed to upload slugs E: Command ‘[‘ssh’, u’2.xxxxxx.ent.magento.cloud’, ‘sudo /etc/platform/xxxxxx/rebuild_slug.sh…