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Bug #27323

Staging Cubic octagonal strut

Added by gerritfischer over 3 years ago. Updated over 3 years ago.

Status:
New
Severity:
Low
Assignee:
-
Category:
Physics
Target version:
-
Start date:
02/24/2021
% Done:

0%

Version:
Platform:
Windows
Expansion:
Core Game
Language:
English (US)
Mod Related:
No
Votes:
Arrow u r green
Arrow d r red

Description

When a module is attached to the main craft via the "Cubic octagonal strut" onto a separator, the module remains frozen and does not react to gravity or other forces. Example: I tried to recreate perseverance and its helicopter. When I attached the helicopter via a Cubic Octagonal Strut to a separator, the helicopter remained frozen. When I attached it via the Small Inline Reaction Wheel, it reacted normally.

I have a video but it is unable to upload despite being 16.7 MB.

Player.log (3.82 MB) Player.log ryuazuku, 04/20/2021 07:25 PM

History

#1 Updated by [email protected] over 3 years ago

Suggestion: Upload video to YouTube, Make it private and Post here.

#3 Updated by MalcolmCooks over 3 years ago

this also affects the octagonal strut
I ran into this bug in kerbin orbit, here's what I found: when you switch to the bugged module, the navball shows 0 orbital velocity, and it begins accellerating with no external forces. if you decouple and then go to the tracking centre, the bugged module has teleported above kerbin's south pole with 0 velocity.

#4 Updated by ryuazuku over 3 years ago

Having this bug with my rover too. If you look at the console in game after decoupling it keeps outputting the same group of text over and over again. Here's a log from my unmodded install.

#5 Updated by Anonymous over 3 years ago

We can avoid this problem with a Module Manager patch

@PART[*]:HAS[#PhysicsSignificance[1],#attachRules[*,*,1,*,*]] {
    @PhysicsSignificance = 0
}

On four parts that could become root parts (FL-A5 adapter, cubic strut, octagonal strut, and BZ-52 radial attachment) but which got special treatment, this removes the special treatment.

'PhysicsSignificance' seems backwards as a name; when it is set to 1 for a part, KSP lumps that part's mass into the parent part, and doesn't simulate physics for the PhysicsSignificance=1 part. For thermometers, that means new players don't need to worry about balancing the mass of every thermometer, which is nice for a game. But I would have expected the structural pieces have their own mass.

#6 Updated by ElectroLlama over 3 years ago

This is the a duplicate to a bug that is currently being worked on: https://bugs.kerbalspaceprogram.com/issues/26926

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