Solution tip icons highlight invalid connections between objects. Invalid connections can be fixed by modifying the objects that are causing the invalid connection.
Verify the connector style rules:
The solution tip icons are displayed. You can move your mouse over a solution tip icon to display a tooltip describing the reason for the disconnection.
The drawing is regenerated and the size of the solution tip icon is updated.
Select Drafting to display solution tip icons as you work in a drawing file. Select Plotting/Publishing to display solution tip icons when plotting or publishing a drawing file.