MacBook Displays Issue

We use a 2016 MacBook Pro for Proclaim and we push two displays. The first display is the overhead projector. The second display is in the pulpit.
For the pulpit display, we use an HDMI over CAT6 extender in order to push the HDMI signal the distance to the pulpit. The exact model we purchased can be found here.
The issue that we're having is that we want the pulpit display to show the "Confidence" monitor. Instead, it is showing the "Slides" monitor. I cannot change it to the "Confidence" monitor.
While the Mac is pushing the display to the pulpit monitor, the monitor does not show up in the Proclaim display settings or the Mac display settings. Somehow the computer knows that the monitor is there but isn't showing it as an option.
Has anyone else experienced this same issue? Is there any way to resolve it?
Comments
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Hi John
(Warning this might be completely wrong - and if so I will really be thankful to be corrected)
As I understand it the MacBook Pro video system is only able to feed two displays usually the internal display and one external.
If you are using the external to run the projector then there is no capability left for the third display (confidence).
Are you, perchance, splitting the feed so that the second display is actually the same signal as goes to the projector?
tootle pip
Mike
Now tagging post-apocalyptic fiction as current affairs. Latest Logos, MacOS, iOS and iPadOS
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Mike Binks said:
Are you, perchance, splitting the feed so that the second display is actually the same signal as goes to the projector?
This is the issue! Thanks so much. Apparently the new USB-C hub that we got (which has two HDMI ports) is duplicating the HDMI signal instead of splitting it in two. When we add a second USB-C to HDMI converter to the Mac it works perfectly fine.
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Pleased to have been of help even if more by luck than good judgment.
tootle pip
Mike
Now tagging post-apocalyptic fiction as current affairs. Latest Logos, MacOS, iOS and iPadOS
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