According to the information you provided, we noticed that the problem mainly occurred in Denon's source switching. Please check Denon's source configuration information Denon device edit -- source confirmation, select Swith with one-click, enter the source list page, and check to ensure that all the input options you used in the list include BLu-ray and Media Player. If there is only one item, click Add and check all the inputs you use. Ensure that the source list is complete.
Then, check whether the input set in the two activities is correct. Open the activity edit -- startup settings respectively, find the relevant options of source, and confirm whether the input selection is correct. If it is wrong, click to select it as correct. Note that the changes need to be saved. Both activities need to be checked.
Finally, if the switching between two activities is normal, but the new one is opened after closing all activities, and the input does not jump normally, it may be caused by the long time the device is powered on and the input switching command is ignored. You can add a delay to the startup settings, and move between the two commands.
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