Eliminating/reducing the hitbox for rock assets

[Strictoaster 16]

I'm working on a set of terrain-confirming rocks that are mostly going to be placed along side the shoreline, however, I keep getting this weird behavior where the water finds a hitbox of sorts, stops rendering and you end up with something that looks like this:

Does anyone have any experience or a workaround for this situation?

Thanks in advance!

[DeltaGamer 13]

A Wild Strictoaster has appeared! 

No idea how to solve your problem though...

 

[boformer 3,169]

Which template did you use?

[Ronyx69 2,413]

Change placement mode to OnWater using this script:

//change placement mode to on water in the asset editor
var asset = ToolsModifierControl.toolController.m_editPrefabInfo as BuildingInfo;
asset.m_placementMode.value__=2;

Then use anarchy/move it to place wherever.

(Turns out my guess for buildingAI was incorrect)

  Edited April 9, 2017 by Ronyx69  

[Strictoaster 16]

To answer Boformer first, I was using this template:

 

That script from Ronyx seems to have done the trick, no phantom hitboxes anymore:

 

TBH, I didn't quite get what you meant about BuildingAI during the stream.
That being said, your help was much appreciated

Many thanks!