Hello,
This issue is related to cache plugin. Please try installing and activating this helper plugin WP Rocket | Set Tablets As Mobile https://github.com/wp-media/wp-rocket-helpers/raw/50ba7f182b531db302bf793f0d622ac1069a1f77/cache/wp-rocket-cache-tablet/wp-rocket-cache-tablet.zip . Clear cache in WP Rocket after activation. Also, enable Separate Cache files for mobile devices option and check after that.
Regards
