Hello @posters2017
If you use the “Mobile Theme Switch” plugin, you need to configure the widgets in all themes you want to switch, one by one, because each of them, manages the widgets in a different way. In whose case, when the plugin switch the theme, would be loaded the corresponding widgets.
Best regards.
Hello @posters2017
Please, deactivate the “Theme Switch” plugin, and let me know if the issue persists. If the issue is caused by our plugin, do not hesitate in contact us directly through our website: Contact Us
Best regards.