Zwift on MACOS Catalina (27 inch mid 2011)

Hi ,

just installed ZWIFT on a iMAC with macOS Catalina. When I start I get the following error message in log.

[21:03:42] GLFW ERROR 65545: NSGL: Failed to find a suitable pixel format
[21:03:42] GLFW ERROR 65545: NSGL: Failed to find a suitable pixel format
[21:03:42] Could not create graphics window of size 2560 x 1440

Zwift doesn’t start after pressing let’s go. What can I do ?

Cheers Philip