Error at "column.headerCell" in mat-table

Question

I'm trying to make a mat-table, in angular 15, but it's giving the following error:

ERROR TypeError: column.headerCell is undefined

Mt HTML looks like this:

<table mat-table [dataSource]="dataSourceInclusoes">
  <ng-container matColumnDef="leito">
    <th mat-header-cell *matHeaderCellDef> Leito </th>
    <td mat-cell *matCellDef="let paciente">{{ paciente.leito }}</td>
  </ng-container>

  <ng-container matColumnDef="atendimento">
    <th mat-header-cell *matHeaderCellDef> Atendimento </th>
    <td mat-cell *matCellDef="let paciente">{{ paciente.atendimento }}</td>
  </ng-container>

  <ng-container matColumnDef="nomePaciente">
    <th mat-header-cell *matHeaderCellDef> Paciente </th>
    <td mat-cell *matCellDef="let paciente">{{ paciente.nomePaciente }}</td>
  </ng-container>

  <ng-container matColumnDef="convenio">
    <th mat-header-cell *matHeaderCellDef> Convênio </th>
    <td mat-cell *matCellDef="let paciente">{{ paciente.convenio }}</td>
  </ng-container>

  <ng-container matColumnDef="Editar">
    <th mat-header-cell *matHeaderCellDef> Editar </th>
    <td mat-cell *matCellDef="let paciente">  </td>
  </ng-container>

  <tr mat-header-row *matHeaderRowDef="colunasTabelaUpload"></tr>
  <tr mat-row *matRowDef="let row; columns: colunasTabelaUpload"></tr>
</table>

I don't if it metters but my table is inside a <mat-tab></mat-tab>

My data source look like this:

colunasTabelaUpload = [ 'leito', 'atendimento', 'nomePaciente', 'convenio', 'Editar' ];