Why does the form 8879 show $338 and Amended 1040x refund amount is $386.

$386 should be correct as the original return they paid $48, so it's added back to produce the $386 refund, but why form 8879 shows different amount when this is also what the client is signing and authorizing?

On the home base, efile center, it also shows the amount of refund $338, i think it's wrong and should be $386 exactly what the 1040x line 21/22 indicates. Any thoughts?