DAS is not running the scan when using a list of Hostnames/IPs.
[2019-11-04 21:10:12.0364][ERROR][WEB-API][Exception rendering channel (DAC for Executable Binary Reputation) for customer 2]Value cannot be null.
Parameter name: address
This is due to using a list of Hostnames/IPs instead of an IP range.
This issue is resolved in version 4.3.