Throttling with Pro Account

When watching Pluto.tv with Firefox using private DNS, there are times when the streaming stops. Then, my phone alerts me that the DNS server cannot be reached, also using DNS over HTTPS to NextDNS. It would seem some level of throttling at NextDNS is occurring despite my account being at Pro level. After closing the Pluto.tv tab in Firefox, service is restored on all devices. Anyone else experiencing cutout issues simultaneously across all their devices? Is there a means of verifying this activity in NextDNS logs?