As shown in the example below, if you're displaying multiple videos in multiple zones on a channel at the same time, the player hardware has to be capable of decoding multiple videos simultaneously in order for this to work. Usually this means the player needs multiple video decoders in order for both videos to be able to play simultaneously.
Additional Notes
If your player does not support multiple video decoding and you attempt to send multiple videos to the player, your player will most likely show a black screen where the video should normally be displaying. However, because this process requires hardware managed at the operating system level, it’s not possible to give an exact answer as to what will happen when you send multiple videos to a player that can not handle displaying multiple videos simultaneously.
If you are able to schedule the uploaded video bulletins in the different zones so that only 1 video is ever being displayed on screen at a given time, there should be no playback issues.
Since we are not hardware or video decoder experts, you will need to check with your A/V reseller or integrator, or review hardware manufacturer specifications to confirm whether or not your player supports multiple video decoding.