fanyab

1. Polylang taxonomy translation not linking correctly

What you want is the standard Polylang term translation behavior, where:

EN term: Maxi Scooters

RU term: Макси скутеры

Both terms are linked translations

Then when you translate a bike post, Polylang automatically maps the taxonomy.

First check these settings

Go to:

Languages → Settings → Custom post types & Taxonomies

Make sure:

bikes → enabled

bike_category → enabled

bike_brand → enabled

Then save.

If this was disabled before, Polylang may have created orphan terms, which causes the weird behavior you described.

Correct workflow for translating taxonomy terms

Do not create terms using the “+” button first if it’s buggy.

Instead do this:

Go to
Bikes → Categories

Edit the English term
Maxi Scooters

On the edit page you will see Languages → Russian

Click Add translation

Enter:

Name: Макси скутеры
Slug: maxi-skutery

Save

This method almost always works better than the small + icon.

If Polylang already created duplicates

Sometimes the system ends up with:

EN: Maxi Scooters

RU: Макси скутеры

RU duplicate not linked

To fix:

Edit the Russian term

Find Translations

Link it manually to the EN term.

Result you should get

When you translate a post:

EN bike post
→ Category: Maxi Scooters

RU bike post
→ Category automatically becomes
Макси скутеры

No manual selection needed.

2. Filter Everything ignoring /ru/

This is a known issue with filtering plugins that generate their own URLs.

Filter Everything usually builds URLs like:

/catalog/category-maxi-scooters/

But with Polylang the correct version should be:

/ru/catalog/category-maxi-scooters/
First check plugin settings

Go to:

Filter Everything → Settings

Look for:

SEO Rules

Permalinks

AJAX filtering

Try disabling AJAX filtering temporarily.

Many multilingual sites only work properly when filters are not AJAX-based.

Enable Polylang compatibility

Check if this option exists:

Use current language in filters

If not available, the workaround is forcing the language prefix via WordPress filters.

Example:

add_filter(‘fe_current_language’, function($lang){
if(function_exists(‘pll_current_language’)){
return pll_current_language();
}
return $lang;
});

This tells the plugin to use the current Polylang language when building URLs.

Also check Permalink structure

Recommended:

domain.com/catalog/
domain.com/ru/catalog/

Avoid mixing:

/catalog/?lang=ru

Polylang directory mode is the cleanest.

3. Translating the filter UI (Category, Brand, etc.)

This part is actually very easy with Polylang.

There are two things to translate:

A) Filter labels

Example:

Category
Brand
Engine size
Price

Go to:

Languages → Translations

Search for the filter labels and translate them.

Example:

EN RU
Category Категория
Brand Бренд

Filter Everything usually registers its strings automatically.

If not:

pll_register_string(‘filter_category’,’Category’);
B) Taxonomy terms

These come from your taxonomy translations.

Example:

EN:

Maxi Scooters
Sport Bikes
Electric Bikes

RU:

Макси скутеры
Спорт байки
Электробайки

Once the taxonomy translations are correctly linked, Filter Everything will automatically show the correct terms on /ru/.