Starting projects when connected to projector in classroom results in highly distorted display.

[StephenJRead]

I was using the projector in class on Monday and Wednesday to show some of the class projects and when I started the projected it gave me a highly distorted display. The Netview window was a reasonable size, but all the widgets and texts within it were highly compressed.
By disconnecting the projector, then starting the project on my laptop and then reconnecting, it would usually display properly, but not always. I believe that the external projector is an Extron.
I did get the following in the terminal window.

Last login: Wed Jan 15 11:11:33 on ttys001
/Applications/Emergent\ Go\ ver\ 1.01/mac\ binaries/ch2/detector ; exit;
(base) Stephen-Reads-MacBook-Pro:~ read$ /Applications/Emergent\ Go\ ver\ 1.01/mac\ binaries/ch2/detector ; exit;
OpenGL version 4.1 INTEL-12.10.14
2020/01/15 11:12:05 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:12:05 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:12:05 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:12:05 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:12:05 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:12:05 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:12:05 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:12:07 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:12:07 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:12:07 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:12:07 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:12:07 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:12:07 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:12:07 PlatformError: Cocoa: Failed to find a screen for monitor
testing index: 7
2020/01/15 11:42:55 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:42:55 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:42:55 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:42:55 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:42:55 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:42:55 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:42:55 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:42:55 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:42:55 PlatformError: Cocoa: Failed to find a screen for monitor
2020/01/15 11:42:55 PlatformError: Cocoa: Failed to find a screen for monitor