I can confirm that there is a problem with template-driven forms in this case. We added some changes in order to correctly update the form control value dynamically, but it looks like with ngModel the value is cleared when it's initialized too early. We need to make some additional checks to find the cause of the problem.

As a workaround for now, please try to defer the initialization of the select value:

HTML:

  <mdb-select-2 [(ngModel)]="selected"></mdb-select-2>

TS:

  selected: any = null;

  ngOnInit() {
    Promise.resolve().then(() => {
      this.selected = '1';
    });
  }

or switch to reactive forms:

HTML:

  <mdb-select-2 [formControl]="select"></mdb-select-2>

TS:

select = new FormControl('1');

Hi,

I have the same problem.

My code works fine with 9.3.1 version

Thanks