Predictive pacing multiplier throws 422 when DNC scrubbing is active

The campaign admin UI keeps rejecting the pacing multiplier adjustment. Org is on the 2024-04-09 release with a standard predictive outbound setup. Dialing speed sits at 1.4x, but the moment DNC scrubbing gets toggled on for the primary contact list, the save action drops a VALIDATION_ERROR straight into the console. Abandonment jumps to 4.1% in the first ten minutes anyway. Platform’s clearly routing ahead of the actual answer threshold. Callable windows are locked to Eastern, and the list segmentation looks clean. Tried rebuilding the contact list from scratch and even disabled the answering machine detection toggle, but the 422 sticks around. Routing engine log shows PREDICTIVE_PACING_CALC_FAILED every time the multiplier crosses 1.2. Compliance team won’t budge on the DNC requirement, so the whole queue gets stuck in progressive mode until this gets patched.

Error trace from the network tab:
POST /api/v2/outbound/campaigns/{id}/settings
Status: 422 Unprocessable Entity
{“error_code”:“pacing_config.conflicts_with_compliance_filter”,“message”:“Predictive multiplier exceeds safe threshold when real-time DNC validation is active”}