In the most recent dive of this game, I commonly noticed loud impact sounds in slow-mo with no apparent impact. While docked at a hab, I experiemented; I had a lot of cargo in a Titan 225, and while docked in a hab and in OMS, impact sounds were continuous. I noticed that every time I entered OMS, even briefly, repair drones launched, so I stopped and watched. While in OMS I was continually taking Faulty Connection damage.
I think the cargo is being registered as a bigger impact than it should while in slow-mo, and damage from inside the cargo bay isn't being prevented, as (I think?) it's supposed to be.