Cannot un-bold text via button (cannot deactivate bold button)

Hello, I encounter an issue with all the buttons, for example I activate bold, add some text and when I try to select text and click on bold to un-bold the text, the bold button remains still blue and the text remains bold. Only the Ctrl+B command helps to un-bold the text. Please see my configuration below: package.json `"dependencies": { "@angular/animations": "19.2.15", "@angular/cdk": "19.2.19", "@angular/common": "19.2.15", "@angular/compiler": "19.2.15", "@angular/core": "19.2.15", "@angular/forms": "19.2.15", "@angular/platform-browser": "19.2.15", "@angular/platform-browser-dynamic": "19.2.15", "@angular/router": "19.2.15", "ngx-quill": "^27.1.2", "quill": "^2.0.3" [...] }, "devDependencies": { "@angular-devkit/build-angular": "19.2.19", "@angular/cli": "19.2.19", "@angular/compiler-cli": "^19.2.15", [...] }` app.config.ts - I am using the Angular standalone features: `provideQuillConfig({ modules: { toolbar: [ ['bold', 'italic', 'underline', 'strike'], ['blockquote', 'code-block'], ['link'], //, 'image', 'video', 'formula' [{ 'header': 1 }, { 'header': 2 }], [{ 'list': 'ordered'}, { 'list': 'bullet' }, { 'list': 'check' }], [{ 'script': 'sub'}, { 'script': 'super' }], [{ 'indent': '-1'}, { 'indent': '+1' }], [{ 'direction': 'rtl' }], [{ 'size': ['small', false, 'large', 'huge'] }], / [{ 'header': [1, 2, 3, 4, 5, 6, false] }], [{ 'color': [] }, { 'background': [] }], [{ 'font': [] }], [{ 'align': [] }], ['clean'] ] } }) ` I create a custom component to integrate the ngx-quill rich text editor: `<form [formGroup]="richTextFg"> <quill-editor #editor [required]="true" [styles]="{ height: '200px' }" formControlName="content" ds-form-validation ></quill-editor> </form>` Thank you in advance! <img width="173" height="124" alt="Image" src="https://github.com/user-attachments/assets/4572500c-b997-4514-834c-9d3b30a35930" />