Input source on the Encoder Control screen is not valid, registering either as a red 'X' or an exclamation mark
Ensure the input source...
- ...is on
- ...is outputting a resolution in the list of supported resolutions
- ...corresponds to the set AV Input Type on the main screen of Encoder Control
- ...appears on a display that supports the source’s resolution
- ...is not HDCP protected (such as a Blu-Ray player or a DVD player)