When this happens, Smart Launcher is usually not the direct cause. In most cases, Android battery restrictions stop background tasks used by the widget app.
Try this checklist:
Turn off battery optimization for both Smart Launcher and the widget app.
Allow the widget app to run in background and enable auto-start (if your device provides this option).
Open the widget app once and confirm all required permissions (for example location, calendar, or notifications).
Remove and add the widget again from the home screen.
Reboot the device.
If the problem appears again, your firmware is likely applying aggressive background limits. In that case, check:
