Cbqos graphs are empty

Turned on cbqos for my ios switches. I see the egress and ingress policy under the port in librenms, but all of the graphs are 0.00 for every class-map for every port. All other port and misc is graphing. Any suggestions on what to check to get this graphing correctly?

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Component Version
LibreNMS 1.38-48-gfbbc257
DB Schema 247
PHP 7.0.28-0ubuntu0.16.04.1
MySQL 10.0.34-MariaDB-0ubuntu0.16.04.1
RRDTool 1.5.5
SNMP NET-SNMP 5.7.3

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[OK] Composer Version: 1.6.4
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct