Hi, Will!
Please confirm the compatibility first.
The new decoder has requirements for the version of the server.
Only the V100R002C50SPC225 of the VCN3010 is compatible with the current decoder version now, so only the video stream of this server is successfully pushed on the video wall.
Root cause
New product compatibility.
Solution description
Solution 1.
Replace the DEC6108 to DEC6001.
Solution 2.
Upgrade all the VCN30x0 servers to the V100R002C50SPC225.
Upgrade all the VCN5x0 servers to the V100R002C30SPC200.