Reply To: Uppercase in frontend, lowercase in backend

Hello,

Please deactivate and delete this plugin: CMB2 if the problem persists, deactivate all the plugins except these ones:

Slider Revolution
Elementor
Woodmart Core
Contact Form 7
MailChimp for WordPress
WooCommerce
Safe SVG

If the problem has gone, activate the plugins one by one, checking the issue to detect which one causes the problem.

Best Regards