[Waiting for user feedback] Advanced Translation Editor removes vc_raw_html content

Hi WPML Support,

I'm experiencing an issue where the **Advanced Translation Editor completely removes the content of `vc_raw_html` shortcodes** when translating pages built with WPBakery (Uncode theme). The same translation works correctly when using the Classic Translation Editor.

## Environment

- **WPML Multilingual CMS:** 4.8.6
- **WPML String Translation:** 3.4.1
- **Theme:** Uncode (with integrated WPBakery Page Builder)
- **ACF Multilingual:** 2.1.5
- **WordPress:** 6.9

## Problem Description

I have a homepage built with WPBakery that contains `vc_raw_html` shortcodes with base64-encoded custom shortcodes inside:
[vc_raw_html]JTVCc3VwZXJzbm93X2Nhcm91c2VsJTVE[/vc_raw_html]
(The base64 decodes to `[supersnow_carousel]`)

**When using Advanced Translation Editor:**
- The `vc_raw_html` shortcode is completely removed from the translated page
- The base64 content disappears entirely
- The translated page is missing entire sections

**When using Classic Translation Editor:**
- The `vc_raw_html` shortcode is preserved correctly
- The base64 content remains intact
- The translated page displays correctly with all modules

## Configuration Attempted
I have tried the following configurations without success in Advanced Editor:

1. **Database setting:** Changed `wpml_page_builders_options` to `translate_raw_html = 1`
2. **Custom XML configuration in WPML Settings:**
```xml

vc_raw_html

```
3. Also tried with `raw-html="1"` attribute:
```xml

vc_raw_html

```
None of these configurations resolved the issue with Advanced Translation Editor.

## Verification

I verified the issue by comparing database content:

- **Original page (PL):** Contains 4 instances of `vc_raw_html` with base64 content
- **Translated with Advanced Editor:** 0 instances of `vc_raw_html`, content completely removed
- **Translated with Classic Editor:** 4 instances of `vc_raw_html` preserved correctly

## Uncode's wpml-config.xml

The Uncode theme includes proper configuration for `vc_raw_html`:
```xml

vc_raw_html

```

This configuration is being ignored by the Advanced Translation Editor.

## Questions

1. Is this a known issue with Advanced Translation Editor and `vc_raw_html`?
2. Is there a configuration option to make Advanced Editor preserve base64-encoded shortcode content?
3. Is there a workaround other than using Classic Translation Editor?

## Workaround

Currently, using Classic Translation Editor works correctly, but it's significantly slower for large pages. I would prefer to use Advanced Editor if possible.

Thank you for your assistance.

Best regards