TOC not correct working with persian (UTF-8) Character

FYI:
I was able to solve the problem by making the following changes:
In This File:
betterdocs/includes/FrontEnd/TemplateTags.php > Line 317 and 318
Replace:

$heading_name = preg_replace('/<[^<]+?>/', '', $matches[0]);

With:

$heading_name = strip_tags($matches[0]);

And Replace:

$heading_name = ! empty( $heading_name ) ? strtolower( str_replace( " ", '-', preg_replace('/<[^>]+>|[^a-zA-Z\s\d]+/', "", html_entity_decode( $heading_name ) ) ) ) : '';

With:

$heading_name = !empty($heading_name) ? strtolower(str_replace(" ", '-', preg_replace('/[^\p{L}\p{N}\s]+/u', "", html_entity_decode($heading_name)))) : '';

and In This File and directory:
betterdocs/includes/Shortcodes/ToC.php > Line 97 and 98

Replece:

$heading_name = preg_replace( '/<[^<]+?>/', '', $current_title );

with:

$heading_name = strip_tags('', $current_title );

and replece:

$heading_name = ! empty( $heading_name ) ? strtolower( str_replace( " ", '-', preg_replace('/<[^>]+>|[^a-zA-Z\s\d]+/', "", html_entity_decode( $heading_name ) ) ) ) : '';

with:

$heading_name = !empty($heading_name) ? strtolower(str_replace(" ", '-', preg_replace('/[^\p{L}\p{N}\s]+/u', "", html_entity_decode($heading_name)))) : '';

Definitely, these changes in the final version need a more detailed technical review by your development and QC team
I tried my best to help you and solve this problem and I hope this information will help you

BR

Hi Again @amitbarai013,
Hope you are doing well.

Almost a long time has passed since announcing this problem and even providing a solution to fix it.
But unfortunately, it has not yet been officially included in your updates
Is there a fix for this problem in your list of future updates?

BR