Aborting on license failure - Arnold User Guide
Starting with Arnold 7.3, Abort on License Fail is enabled by default, so batch renders abort (stop) if an Arnold license is not available. This means you don't have to check rendered image sequences for watermarks.
Interactive renders (IPR) do not abort, and render with a watermark on license fail.
You can use the environment variable ARNOLD_FORCE_ABORT_ON_LICENSE_FAIL
to override this default behavior.
- 0 = batch and interactive render with watermarks on license fail.
- 1 = batch and interactive abort on license fail.
You can set Abort on License Fail in the render settings, or for some plugins (MtoA and C4DtoA) on the command line.