Hello ,
you should at least provide some info like
switch model , IOS version and if this a modular switch a show module .
You should check the CEF table for the affected host.
The ARP table can be correct pointing to the correct MAC address.
The CEF entry holds the packet rewrite information if that entry is somewhat corrupted the forwarding to the host fails.
show ip cef
or
show cef <host-address> detail
verify the info of packet rewrite (note it will be shown in hexadecimal )
Hope to help
Giuseppe