"TODO IMPLEMENT" error being spammed in the console. Should I ignore?

Hi.

I have decided to re-bake Occlusion Culling, and selected "PVS and dynamic objects". After complete, I clicked on "Visualization", turned on the visibility lines, and got an error sent to the console 4 times:

 TODO IMPLEMENT
 UnityEditor.DockArea:OnGUI()

If I move the scene view camera, I get more of the same error message spammed in the console. A red-ish triangle is drawn around my character, is that expected? I'll attach a screenshot to better explain the situation:

My bake settings go as follows:

• View Cell Size = 3

• Near Clip Plane = 0.1

• Far Clip Plane = 40

• Memory Limit = 9765 KB

This issue does not occur when selecting Automatic Portal Generation. Is it safe to just ignore? Or should I not use that occlusion culling technique?