PHP Telegram bot API. editMessageReplyMarkup returns false - php

Question

I have a question about using editMessageReplyMarkup method in Telegram bot API in PHP.
I'm trying to provide user choose category and sub-category after with InlineKeyboardMarkup . But I want to make it with replacing one Keyboard with another.
I found method editMessageReplyMarkup which does exectly what I need , but for some reason it returns me false.
On the first screenshot you can see how bot sends me categories.
After I choose any of it next code is running:
if (is_array($update[count($update)-1]["callback_query"])) {
$chat_id = $update[count($update)-1]["callback_query"]["from"]["id"];
$requested_category = $update[count($update)-1]["callback_query"]['data'];
$message_answer_id = $update[count($update)-1]["callback_query"]['message']['message_id'];
send_sub_projects($user_model, $telegram, $chat_id, $requested_category, $message_answer_id);
}
Here is the method send_sub_projects
function send_sub_projects($user_model, $telegram, $chat_id, $category, $message_id) {
$subcategories = $user_model->get_sub_categories($category);
for ($i=0; $i < count($subcategories); $i++) {
$subcategories[$i] =
array(array('text'=>$subcategories[$i],'callback_data'=>$subcategories[$i]));
}
$decoded_subcategories = json_encode(array('inline_keyboard' => $subcategories));
$parameters =
array(
'chat_id' => $chat_id,
'message_id' => $message_id,
'reply_markup' => $decoded_subcategories
);
$telegram->editMessageReplyMarkup($parameters)
}
So basically I send everything which is requeired: message_id, chat_id, new_markup. And when I run that script I can see arrays are built fine, see the next screenshot:
And everything I got from this is false returning me from method I called, of coruse no changes in telegram bot message.
Does anyone have any ideas? Thank you for reply.