Short/thin Hull prevents breach from forming on adjacent shell/walls

[Draconis13]

Disclaimers

• I have searched the issue tracker to check if the issue has already been reported.
• My issue happened while using mods.

What happened?

Making small hull bilges/ballasts since last patch now prevents breaches from spawning water flow into the ships hull. I am unsure if this affects any vanilla submarines but it is fairly common on modded subs that have a small bilge or ballast area under engineering similar to the humpback.

Reproduction steps

Use or create a submarine with a short hullspace, often as a bilge under a larger room, the bilge can be linked or not linked to the hull above it. Cutting into the floor of this bilge will not cause water to flow into the room and the gap formed by the destroyed shell/wall will be unpressurized and can be freely swam in.

Tried deleting both the hull and shell/walls and using new fresh prefabs and different names on hull such as not using bilge ballast. Problem persists until the bilge is made 7 "squares" or higher in the editor, at 6 squares and below the pressure triangle symbol will not appear and water will not flow into the hull space.

There is some quirk where the short hull overlaps two hulls/walls by having a divider between say two ballasts a minor breach will form in the center of the dividing wall if the underlying shell and wall are cut.

Bug prevalence

Happens regularly

Single player or multiplayer?

Happens in both single player and multiplayer

-

No response

Version

v1.7.7.0 (Winter Update)

-

No response

Which operating system did you encounter this bug on?

Windows

Relevant error messages and crash reports

No error or warnings appear when the shell/wall is damaged, the breach gap and water inflow along with resultant pressure just fails to appear. Perhaps something is wrong with the check when the breach occurs?

[Draconis13]

Did more testing and it seems like walls do not have the problem shell has and overlapping a wall scaled to .550 and 200 health at the bottom shell on submarine I am testing this on and while enemies can target the overlapped wall they also do not seem to attack it at the same rate as the shell (reduced to 75 wall health value) and it causes issues with plasma cutters which can only target 1 thing at a time even if that structure is broken so this is not an optimal fix or work around.

As a side issue is there a way to shore up the pathfinding on bot welding? I am having immense trouble getting them to weld in these smaller hull spaces, I would use a single hull but there is a problem getting the pumps to work correctly as a ballast in the small space, its obviously a very experimental and radical design but up until recently it was mostly working.