Issue with MissionPlanner-Beta on Mono

On startup: <img width="1366" height="710" alt="Image" src="https://github.com/user-attachments/assets/b436ed92-0aa6-42c4-9409-059d8ad5e010" /> After clicking on a tab: <img width="1187" height="557" alt="Image" src="https://github.com/user-attachments/assets/15fc680f-310e-4075-88c4-bebe7a0d661b" /> <img width="1366" height="709" alt="Image" src="https://github.com/user-attachments/assets/8d4903fb-802b-41bd-8245-1e82a91f0e13" />