Center Of Lift (COL) isnt working correctly in EVA Construction Mode.
GOG KSP 1.11.0 (No DLCs/No Mods)
KSP 1.11.0 (DLCs)
KSP 1.11.0 (DLCs + Mod for moving testing craft)
Showing COL only shows direction for a fraction of a second. And its wrong pointing in a 270 degree direction in an almost horizontal direction
Shows a plane spinning with EVA Construction mode looking at COL Moving weirdly
The two screenshots show a completely different result from the SPH to in scene.
Oh.... it is showing real time aerodynamic results in scene.
That's why its showing no arrow.
Video link below shows aerodynamics working in scene.
Unfortunately real time aerodynamics is pretty hard to see when the engineer is usually stationary and so are the crafts close to them.
Adding feedback suggestion shortly
Note the arrow is pointing down. Shouldnt it be pointing up?