Caltrops not triggered

[davidparks21]

I'm looking at the replay of a friendly battle on a new base design and I see 2 caltrops that were not triggered but were clearly traversed by numerous troops. Can anyone explain this? I've attached the video of the attack and an image of the base design in the editor showing the location of the caltrops.

https://youtu.be/7k4dIszDW_M

Incidentally I reproduced this by attacking my own base, purposefully trying to set off the caltrops, but they didn't spring, they had no effect.

 

[davidparks21]

never mind, I figured it out, those two caltrops were being upgraded, there just wasn't any visual indication of this because it wasn't the active base design.

 

[sileepuppee]

In war they would still trigger as they don't get affected by being upgraded.