Hi there,
Welcome to SeaTheme forum.
It seems a cache issue. You can disable all cache plugin(instead of purging cache) to test several days. There maybe a host level cache, please look for and disable it on your website host cPanel also.
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If it doesn’t work, may I check your website? Could you please leave your wp-admin access (URL / username/password) by picking up “Set as private reply”?
Regards!
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