In some cases, a DStellar serialization error can occur in DELTAGEN R2018 when a batch render job with a zip package containing a heavy project gets started. The exact error message says:
ERROR dstellar.batch_renderer – Exception caught while performing batch rendering: Attempt to deserialize unknown type 00000000-0000-0000-0000-000000000000.
A fix for this problem is included in DELTAGEN R2018x. The zip package is now properly packaged to avoid this problem. We recommend to consider an update of DELTAGEN.