Is Loop Closure availabale for a monocular camera?

[neliudochka]

Hi!
I ran Kimera-VIO-ROS with monocular real sense camera d455. The resulting trajectory is overall correct, but it seems that LCD doesn't work properly. The ending position must be the same as the starting, but as you can see on the screenshot, there is a huge drift.

I've checked the commits and found out that mono LCD was added to Kimera here. But for me, it doesn't work.
Any ideas why?