Issue #23208: Terrain gap in rock placed ref
The cell is -15 -15 in the Tamriel worldspace and the ref is 39e38. I've included two screenshots, one in game and one in the CK (it's not super obvious where the issue is in the CK alone)
I've attached a zip with a fix for LE and SE; give it a look over to double check that I actually fixed the issue and that there wasn't a simpler or better way to do it. Let me know if you have any questions.