Users complaining of modular cards decaying even though they are indoors and within TC range. Here are my settings:

    "Modular Car": {
      "Allow the plugin to influence decay": true,
      "Decay multiplier while inside": 0.0,
      "Decay multiplier near tool cupboard": 0.0,
      "Protect from decay after recent use (minutes)": 10.0,
      "Decay interval (seconds)": 60.0
    },

Have you been able to reproduce the issue?

You can enable debugging by editing the top of the VehicleDecayProtection.cs file, just change the following two lines at the top from:

// #define DEBUG_LOG
// #define DEBUG_SHOW

to:

#define DEBUG_LOG
#define DEBUG_SHOW