PyQt - QTabWidget doesn't change language all tab when use Qt Linguist

Question

I'm facing an issue. I use Qt Linguist for multi language app. If use for QWidget, it work well. But when i use with QTabWidget, it just change language in one tab, other tab do not update language. Anyone help me, please

Example: I have button in tab 1, when i press that button, i want to change language in all tab. But just tab 1 change, other tab do not change. See my code

My Main Window

import os
import sys
from PySide6.QtCore import Qt, QLocale, QTranslator, QCoreApplication
from PySide6.QtWidgets import QWidget, QMainWindow, QApplication, QVBoxLayout, QLabel, QPushButton, QTabWidget

from screen_one import ScreenOne
from src.screen_two import ScreenTwo
from src.tab_one import TabOne
from src.tab_two import TabTwo


class MainWindow(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        self.current_locale = QLocale.system().name()
        self.load_ui()

    def load_ui(self):
        self.central_widget = QWidget()
        self.central_layout = QVBoxLayout()
        self.central_widget.setLayout(self.central_layout)

        self.tab_widget = QTabWidget()
        self.screen_one = ScreenOne()
        self.screen_one.click_signal.connect(self.change_language)
        self.screen_two = ScreenTwo()
        self.tab_one = TabOne()
        self.tab_two = TabTwo()

        # Add tabs to the tab widget
        self.tab_widget.addTab(self.screen_one, "Tab 1")
        self.tab_widget.addTab(self.screen_two, "Tab 2")
        self.tab_widget.addTab(self.tab_one, "Tab 3")
        self.tab_widget.addTab(self.tab_two, "Tab 4")

        self.central_layout.addWidget(self.tab_widget)

        self.setCentralWidget(self.central_widget)

    def change_language(self):
        qtranslator = QTranslator()
        translator.load("/path/main_vi.qm")
        QCoreApplication.instance().installTranslator(qtranslator)
        self.retranslateUi()

    def retranslateUi(self):
        # Update the text of the label and button
        for index in range(self.tab_widget.count()):
            self.tab_widget.widget(index).retranslateUi()

if __name__ == "__main__":
    app = QApplication(sys.argv)

    # Create and install the translator
    translator = QTranslator()
    translator.load("/path/main_en.qm")
    app.installTranslator(translator)

    window = MainWindow()

    window.show()
    sys.exit(app.exec())

My Screen One, which have button to change language:

import sys

from PySide6.QtGui import QImage
from PySide6.QtCore import Qt, QCoreApplication, Signal
from PySide6.QtWidgets import QApplication, QWidget,  QVBoxLayout, QLabel, QHBoxLayout, QPushButton

class ScreenOne(QWidget):
    click_signal = Signal(bool)
    def __init__(self, parent=None):
        super().__init__(parent)
        self.load_ui()

    def load_ui(self):
        # create label
        self.mylabel = QLabel(self.tr("This is screen 1"))
        # center
        self.mylabel.setAlignment(Qt.AlignCenter)

        self.label_2 = QLabel(self.tr("Hello 1"))

        # create label
        self.mylabel = QLabel(self.tr("Qt Init Widget"))
        # center
        self.mylabel.setAlignment(Qt.AlignCenter)

        self.label_1 = QLabel(self.tr("This is a QLabel 1"))
        self.button_1 = QPushButton(self.tr("Press me 1"))
        self.button_2 = QPushButton(self.tr("Press me 2"))
        self.button_3 = QPushButton(self.tr("Press me 3"))
        self.button_change_language = QPushButton(self.tr("Change Language"))
        self.button_change_language.clicked.connect(self.change_language)

        # create layout
        self.layout = QVBoxLayout()
        self.layout.setAlignment(Qt.AlignTop)


        self.layout.addWidget(self.mylabel)
        self.layout.addWidget(self.label_2)
        self.layout.addWidget(self.label_1)
        self.layout.addWidget(self.button_1)
        self.layout.addWidget(self.button_2)
        self.layout.addWidget(self.button_3)
        self.layout.addWidget(self.button_change_language)

        self.setLayout(self.layout)

    def change_language(self):
        self.click_signal.emit(True)

    def retranslateUi(self):
        self.mylabel.setText(QCoreApplication.translate("", u"This is screen 1", None))
        self.label_2.setText(QCoreApplication.translate("", u"Hello 1", None))
        self.label_1.setText(QCoreApplication.translate("", u"This is a QLabel 1", None))
        self.button_1.setText(QCoreApplication.translate("", "Press me 1", None))
        self.button_2.setText(QCoreApplication.translate("", "Press me 2", None))
        self.button_3.setText(QCoreApplication.translate("", "Press me 3", None))
        self.button_change_language.setText(QCoreApplication.translate("", "Change Language", None))

My Screen Two, Other Screen similar with Screen two: import sys

from PySide6.QtGui import QImage
from PySide6.QtCore import Qt, QCoreApplication
from PySide6.QtWidgets import QApplication, QWidget,  QVBoxLayout, QLabel, QHBoxLayout

class ScreenTwo(QWidget):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.load_ui()

    def load_ui(self):
        # create label
        self.mylabel = QLabel(self.tr("This is screen 2"))
        # center
        self.mylabel.setAlignment(Qt.AlignCenter)

        self.label_2 = QLabel(self.tr("Hello 2"))

        # create layout
        self.layout = QVBoxLayout()
        self.layout.setAlignment(Qt.AlignTop)

        self.layout.addWidget(self.mylabel)
        self.layout.addWidget(self.label_2)
        self.setLayout(self.layout)

    def retranslateUi(self):
        self.mylabel.setText(QCoreApplication.translate("", u"This is screen 2", None))
        self.label_2.setText(QCoreApplication.translate("", u"Hello 2", None))

Answer 1

I found solution. That's my bad, in retranslateUi() function, must pass the context parameter.

 def retranslateUi(self):
    self.mylabel.setText(QCoreApplication.translate("ScreenOne", u"This is screen 1", None))
    self.label_2.setText(QCoreApplication.translate("ScreenOne", u"Hello 1", None))

Similar for other screen.