It is possible to end up with multiple ports highlighted as “active” at one time, view system/7/
- Enter canvas from bottom directly onto center port, fire center port.
- Blur the canvas and port while remaining in that port’s hit area. Remains active.
- Re-enter the canvas from bottom, directly onto port just right of center port. Fire that port.
- Rinse, repeat until all ports are active.
NOTE: inconsistent trigger. This is not a guaranteed reproduction, but I assure you that it is possible to get many ports active at the same time.
Solution: trigger universal blur once you leave the canvas?