Highlighting lingers

highlights form Upgrade tool sometimes stays on the map.
Steps to reprodue:

1. Use Upgrade tool (I) to upgrade a section of pipe/belt.
   2.Without moving mouse, Copy (C) and drag out a junction.

same

I can't repro this issue, can you elaborate on point #2?

This happens to me

Files not imported: 2AFB7C1.mp4

Thanks for the video, are you using sandbox\insta construction?

yea

it also persists when deconstructed

Fixed in the next patch.