Cannot axctivate specific window

Hello,

I would like to activate the PiP window of a virtual screen from Betterdisplay (to minimise/maximise it).

The name of the window is 'FHD-Lighttable', and the application is called 'BetterDisplay'.

<AXApplication: "BetterDisplay">
 <AXWindow: "FHD-Lighttable">
  <AXStaticText>

Attributes:
   AXFocused:  "0"
   AXFrame:  "x=2437 y=1211 w=104 h=16"
   AXChildrenInNavigationOrder:  "<array of size 0>"
   AXSelectedText:  "(null)"
   AXInsertionPointLineNumber:  "0"
   AXPosition:  "x=2437 y=1211"
   AXNumberOfCharacters:  "14"
   AXEnabled:  "1"
   AXPlaceholderValue:  "(null)"
   AXSelectedTextRange:  "pos=0 len=0"
   AXHelp:  "(null)"
   AXChildren:  "<array of size 0>"
   AXRole:  "AXStaticText"
   AXParent:  "<AXWindow: "FHD-Lighttable">"
   AXTopLevelUIElement:  "<AXWindow: "FHD-Lighttable">"
   AXVisibleCharacterRange:  "pos=0 len=14"
   AXValue:  "FHD-Lighttable"
   AXSize:  "w=104 h=16"
   AXRoleDescription:  "Text"
   AXWindow:  "<AXWindow: "FHD-Lighttable">"

However, I am unable to activate this window:

How can I debug this or track down the error?

Thanks!

Regards, Simon