do not stack when we loot we would like to stack there is the option please correct this please

I have mine set to 200 and they all stack, check your config

{
"RevertStackSizesToVanillaOnUnload": false,
"AllowStackingItemsWithDurability": false,
"HidePrefixWithPluginNameInMessages": false,
"GlobalStackMultiplier": 1.0,
"CategoryStackMultipliers": {
"Weapon": 1.0,
"Construction": 5.0,
"Items": 5.0,
"Resources": 10.0,
"Attire": 5.0,
"Tool": 5.0,
"Medical": 10.0,
"Food": 10.0,
"Ammunition": 3.0,
"Traps": 5.0,
"Misc": 5.0,
"All": 5.0,
"Common": 5.0,
"Component": 5.0,
"Search": 5.0,
"Favourite": 5.0,
"Electrical": 5.0,
"Fun": 5.0

"keycard_blue": 10,
"keycard_green": 10,
"keycard_red": 10,

@pookins

My settings are similar , dont know why yours is not working
{
"RevertStackSizesToVanillaOnUnload": false,
"AllowStackingItemsWithDurability": true,
"HidePrefixWithPluginNameInMessages": false,
"GlobalStackMultiplier": 1.0,

"IndividualItemStackMultipliers": {},
"IndividualItemStackSize": {
"keycard_blue": 200,
"keycard_green": 200,
"keycard_red": 200,