For some reason I no longer can see the color of the tool tip. It’s being blocked by a non-descript white rectangle. as seen in the screen captures below.
Does anyone have an idea why this can happen?.. or recall this being mentioned before?
Tool tip usually refers to the text box that pops up. I guess you mean the inferencing mark. It’s most likely related to the graphics card. Try turning off Hardware Acceleration in Preferences>OpenGL. And see if that has any impact.
It might be a symptom of the problems SU still has with high-resolution screens. They fixed the icons in the 2016 release, but things inside the model window are, I understand, not quite there yet.