Yeah that's what I'm guessing happened

Are you making sure you're standing next to the space the soldier was downed in rather than next to the visual model? Soldiers can ragdoll out of their spaces, but the game will still consider the soldier to be whereever it was they were standing when they were downed. You can see an example of this in the screenshots: the soldier model is lying in the middle of the road, but the game considers them to be next to the fence.

I like this mod but sometimes it just decides randomly not to work. I'll go up next to a bleeding soldier and there won't be any stabilize option.

Love this mod, alongside medikits revive and alternate bleedout mechanics it makes it a bit easier to deal with downed soldiers.

tactical backup

I'm glad for this, definite inclusion! Great mod