Chromecast cross-VLAN traffic on a Unifi UDM Pro SE

This post won’t be particularly long, but I stumbled across a few Chromecast related to VLANs on the Unifi UDM Pro SE. A quick overview of the setup:

• Unifi UDM Pro SE running network version 8.1.113
• I created one VLAN called “Mobile” — VLAN40
• I created a second VLAN called “Media Players” — VLAN60