macOS Tahoe Unable to activate a component

[griersonNFK77]

The circle which gets a black dot in it when a component is selected disappears when the mouse goes over it. Intel 2019 MAC Pro.

[griersonNFK77]

This is in Design, works OK for selecting Setups in Manufacture.

[griersonNFK77]

I switched my MAC to dark mode, switched Fusion to match device theme and the end of the text box containing the component names is now visible. If I position the mouse pointer exactly on the edge of this text box I can activate the component. This bug still needs to be fixed along with all the others in the MAC user experience (different behaviour depending on which virtual desktop is used, Setup lists flicking up and down with mouse over...)

[griersonNFK77]

Oh, and the tool tip text vanishing as can be seen in the video.

[griersonNFK77]

It works ok on desktop 0. How do you write code like that?