Angular-google-maps: Snazzy info window not showing

Hello,
I have the same issue, but I notice a small X and the content in the upper left corner of the map (see attachment).
Probably css style issue.
my code :

<agm-map [latitude]="lat" [longitude]="lon" [zoom]="zoom">
    <agm-marker [latitude]="lat" [longitude]="lon">
        <agm-snazzy-info-window [maxWidth]="200" [closeWhenOthersOpen]="true"

>
            <ng-template>
                hop
            </ng-template>
        </agm-snazzy-info-window>
    </agm-marker>
</agm-map>

app.module.ts :

import { BrowserModule } from '@angular/platform-browser';
import { NgModule, NO_ERRORS_SCHEMA } from '@angular/core';
import { AppComponent } from './app.component';
import { AppRoutingModule } from './app-routing.module';

// project components
import { MapComponent } from './map/map.component';

// Third Party
// Material Design Bootstrapmodule
import { MDBBootstrapModule } from 'angular-bootstrap-md';
// Angular Google Map modules
import { AgmCoreModule } from '@agm/core';
import { AgmSnazzyInfoWindowModule } from '@agm/snazzy-info-window';


@NgModule({
  declarations: [
    AppComponent,
    MapComponent
  ],
  imports: [
    BrowserModule,
    AppRoutingModule,
    MDBBootstrapModule.forRoot(),
    AgmCoreModule.forRoot({
      apiKey: 'my google api key here (mine, not this text)'
    }),
    AgmSnazzyInfoWindowModule
  ],
  schemas: [ NO_ERRORS_SCHEMA ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

.angular-cli.json, style declarations:

      "styles": [
        "../node_modules/font-awesome/scss/font-awesome.scss",
        "../node_modules/angular-bootstrap-md/scss/bootstrap/bootstrap.scss",
        "../node_modules/angular-bootstrap-md/scss/mdb-free.scss",
        "../node_modules/snazzy-info-window/dist/snazzy-info-window.scss", // replace .css by .scss, because I set styleext to .scss. same error with .css. checked, file exists
        "./styles.scss"
      ],

Dependencies:

"dependencies": {
    "@agm/core": "^1.0.0-beta.2",
    "@agm/snazzy-info-window": "^1.0.0-beta.2",
    "@angular/animations": "^5.0.0",
    "@angular/common": "^5.0.0",
    "@angular/compiler": "^5.0.0",
    "@angular/core": "^5.0.0",
    "@angular/forms": "^5.0.0",
    "@angular/http": "^5.0.0",
    "@angular/platform-browser": "^5.0.0",
    "@angular/platform-browser-dynamic": "^5.0.0",
    "@angular/router": "^5.0.0",
    "angular-bootstrap-md": "^5.0.5",
    "chart.js": "^2.5.0",
    "core-js": "^2.4.1",
    "font-awesome": "^4.7.0",
    "hammerjs": "^2.0.8",
    "rxjs": "^5.5.2",
    "snazzy-info-window": "^1.1.0",
    "zone.js": "^0.8.14"
  },

Solved for me!
Restarting ng serve reloads .angular-cli.json, and so load css files.

infowindow is now rendered in the map!

hope that solve your issue too.
(4hours on that bugs, for a restart!!!)

This is an support issue that doesn't represent a bug or a concrete feature request, so I'm closing this issue. Feel free to chat below or use the official chat room on Gitter: https://gitter.im/SebastianM/angular2-google-maps

i think css from @agm/snazzy-info-window not to import yet @vincent-ledu