[TheDarkStar]

This also happened for regular nominations/rock the vote. Whenever I try to do !nominate, only the regular maps appear.

[Bacardi]

Looking SourceMod configure, ...addons/sourcemod/configs/maplists.cfg

PHP Code:

/**
 * Use this file to configure map lists.
 *
 * Each section is a map list that plugins can use.  For example, the Admin Menu 
 * requests an "admin menu" map list, and you can control which maps appear via 
 * this file.
 *
 * Each section must have a property that explains where to read the maps from.
 * There are two properties:
 *
 *    target         - Redirect the request to another section.
 *    file             - Read a file of map names, in mapcycle.txt format.
 *
 * There is one section by default, called "mapcyclefile" - it is mapped to the 
 * mapcycle.txt file, or whatever the contents of your mapcyclefile cvar is.
 *
 * If a plugin requests a map list file which doesn't exist, or is empty, SourceMod 
 * tries the "default" section, and then the "mapcyclefile" section.
 */
"MapLists"
{
    /**
     * Default requests go right to the mapcyclefile.
     */
    "default"
    {
        "target"        "mapcyclefile"
    }
    
    /* Admin menu, map menu */
    "sm_map menu"
    {
        "file"            "addons/sourcemod/configs/adminmenu_maplist.ini"
    }
    
    /* Admin menu, map voting menu */
    "sm_votemap menu"
    {
        "file"            "addons/sourcemod/configs/adminmenu_maplist.ini"
    }
    
    /* For the "randomcycle" plugin */
    "randomcycle"
    {
        "target"        "default"
    }
    
    /* For the "mapchooser" plugin */
    "mapchooser"
    {
        "target"        "default"
    }
    
    /* For the "nominations" plugin */
    "nominations"
    {
        "target"        "default"
    }
} 


You see sm_map menu and sm_votemap menu is trying to look map list file called:
...addons/sourcemod/configs/adminmenu_maplist.ini

This file does not exist by default, so it would list all maps from maps folder.
You can create that file but not need to.

-

Then look mapchooser and nominations, those look target default.
Which again default try look target mapcyclefile

mapcyclefile is console variable, which by default look map cycle file called:
...csgo/mapcycle.txt
In that file you see regular maps.

cs_italy
de_dust
de_aztec
cs_office
de_dust2
de_train
de_inferno
de_nuke

-

So, to make it easier, remove/add maps name in mapcycle.txt

You can also change SM config maplists.cfg

Spoiler

/**
 * Use this file to configure map lists.
 *
 * Each section is a map list that plugins can use.  For example, the Admin Menu 
 * requests an "admin menu" map list, and you can control which maps appear via 
 * this file.
 *
 * Each section must have a property that explains where to read the maps from.
 * There are two properties:
 *
 *    target         - Redirect the request to another section.
 *    file			 - Read a file of map names, in mapcycle.txt format.
 *
 * There is one section by default, called "mapcyclefile" - it is mapped to the 
 * mapcycle.txt file, or whatever the contents of your mapcyclefile cvar is.
 *
 * If a plugin requests a map list file which doesn't exist, or is empty, SourceMod 
 * tries the "default" section, and then the "mapcyclefile" section.
 */
"MapLists"
{
	/**
	 * Default requests go right to the mapcyclefile.
	 */
	"default"
	{
		"target"		"mapcyclefile"
	}
	
	/* Admin menu, map menu */
	"sm_map menu"
	{
		"target"		"default"
	}
	
	/* Admin menu, map voting menu */
	"sm_votemap menu"
	{
		"target"		"default"
	}
	
	/* For the "randomcycle" plugin */
	"randomcycle"
	{
		"target"		"default"
	}
	
	/* For the "mapchooser" plugin */
	"mapchooser"
	{
		"target"		"default"
	}
	
	/* For the "nominations" plugin */
	"nominations"
	{
		"target"		"default"
	}
}

But please mention us, are you using workshop maps ?

[TheDarkStar]

I have no idea what it is, but what you did actually works.
I am running the server for tf2 btw, and using workshop maps, and yes I did update all of the map lists (mapcycle and maplist.txt)Thank you! Very appreciated.

[Bacardi]

Nice