It's apparently a problem with the newer RCSFX introduced to the game and the mod not yet being updated to reflect the changes.
After a little scouring of the interwebs, I managed to piece this fix together. Simply go to Gamedata/UmbraSpaceIndustries/FTT/Parts and open the file named "FTT_Control_375_01" using notepad. This is the part file for the control module. Simply overwrite everything in there with the config below and you should have regular plumes again.
Almost everything is as Roverdude originally wrote with the exception of the additions of the tweaks to fix the effects. I hope I'm not overstepping my bounds by altering and showing this. If so, I apologise.
PART
{
// --- general parameters ---
name = FTT_Control_375_01
module = Part
author = RoverDude
// --- asset parameters ---
scale = 1
rescaleFactor = 1
MODEL
{
model = UmbraSpaceIndustries/FTT/Assets/FTT_Control_375_01
}
// --- node definitions ---
// definition format is Position X, Position Y, Position Z, Up X, Up Y, Up Z
node_stack_bottom = 0.0, -0.25, 0.0, 0.0, -1.0, 0.0, 3
node_stack_top = 0.0, 0.25, 0.0, 0.0, 1.0, 0.0, 3
// --- editor parameters ---
TechRequired = heavierRocketry
entryCost = 7600
cost = 3800
category = Control
subcategory = 0
title = 'Honeybadger' Control Module
manufacturer = Umbra Space Industries
description = 3.75m control module with built in SAS and RCS thrusters
breakingForce = 203040
breakingTorque = 203040
tags = FTT
// attachment rules: stack, srfAttach, allowStack, allowSrfAttach, allowCollision
attachRules = 1,0,1,1,0
// --- standard part parameters ---
mass = 1.25
dragModelType = default
maximum_drag = 0.20
minimum_drag = 0.15
angularDrag = 2
crashTolerance = 45
maxTemp = 3400
bulkheadProfiles = size3
//MODULE
//{
// name = ModuleRCS
// thrusterTransformName = RCS_Transform
// thrusterPower = 12
// resourceName = MonoPropellant
// resourceFlowMode = STAGE_PRIORITY_FLOW
// atmosphereCurve
// {
// key = 0 260
// key = 1 100
// }
//}
EFFECTS
{
running
{
AUDIO_MULTI_POOL
{
channel = Ship
transformName = RCS_Transform
clip = sound_rocket_mini
volume = 0.0 0.0
volume = 0.1 0.0
volume = 0.5 0.025
volume = 1.0 0.15
pitch = 0.0 0.75
pitch = 1.0 1.0
loop = true
}
MODEL_MULTI_PARTICLE
{
modelName = Squad/FX/Monoprop_small
transformName = RCS_Transform
emission = 0.0 0.0
emission = 0.1 0.0
emission = 1.0 1.0
speed = 0.0 0.8
speed = 1.0 1.0
localRotation = -90, 0, 0
}
}
}
MODULE
{
name = ModuleRCSFX
stagingEnabled = False
thrusterTransformName = RCS_Transform
thrusterPower = 12
resourceName = MonoPropellant
resourceFlowMode = STAGE_PRIORITY_FLOW
atmosphereCurve
{
key = 0 260
key = 1 100
}
}
MODULE
{
name = ModuleReactionWheel
PitchTorque = 30
YawTorque = 30
RollTorque = 30
RESOURCE
{
name = ElectricCharge
rate = 0.6
}
}
MODULE
{
name = ModuleSAS
}
RESOURCE
{
name = ElectricCharge
amount = 4000
maxAmount = 4000
}
RESOURCE
{
name = MonoPropellant
amount = 750
maxAmount = 750
}
MODULE
{
name = ModuleResourceConverter_USI
ConverterName = Compressor
StartActionName = Start Compressor
StopActionName = Stop Compressor
INPUT_RESOURCE
{
ResourceName = IntakeAtm
Ratio = 5
}
INPUT_RESOURCE
{
ResourceName = ElectricCharge
Ratio = 150
}
OUTPUT_RESOURCE
{
ResourceName = MonoPropellant
Ratio = 0.5
DumpExcess = false
}
}
}