@Amigaharry2: I'm not going to enter in technical reasons but in fact all secondary windows are currently unusable due to Font characters not readable. It's a problem of how TGL handles textures id and how Blender is designed.
I need to talk about that with the MorphOS team... because I can't easily patch Blender to support TGL as it.

You may mention that secondary windows work before, but in fact the refresh of the main window was corrupted sometime: I've made a choice: having a stable refresh but no secondary windows.

All informations displayed by these secondary windows are available through the main window, even preferences: check the User Preferences item by cliking on the Editor Type button at left of any header bar.