Firmware version:HDMI_V3.00.96.240718

Hardware version:MC-HDMI-E000001

Mac address:3A:22:12:1C:9C:23

Serial number:TV-MIX30D202504306007

Running time:00:15:35

P2P:SN123456789

I have no problem with 1920x1080. but I cannot stream 1280x1024. is it a firmware issue or settings?