Triangle set screen mirror not working for all panels - but they do work during non screen mirror

I have connected my new triangle set up through the app, and it is all working fine, can edit the colours and it works across all panels, so I know the connectivity is not the problem.

When I click screen share however, only the main panel is mirroring, the other are blank. In the app, only the main panel itself is detected

https://preview.redd.it/2b0otvv8b95g1.png?width=3171&format=png&auto=webp&s=79e47b0ade6207ab1109df291a3a09b9cb7a69d9

https://preview.redd.it/k7afod2nb95g1.jpg?width=5712&format=pjpg&auto=webp&s=c8e75d52715ac15ada02fa7c8d84658a8fb7fc36

https://preview.redd.it/7sq8ff2nb95g1.jpg?width=5712&format=pjpg&auto=webp&s=9400521117300d62f8d72b0eff93e23e38000515

Does anyone have any ideas?