Field Level Update Trigger updates field only once

Summary

Field Level Update Trigger on BO only updates field when record is created

Content

Hello,

I have a very simple trigger in one BO that executes always.  When a field is updated (treasurySymbol), I grab another field from a related BO (attributeOne).

This works fine when the record is created but updates do not work.

It is an update trigger so I am a little confused here.  When I change the treasurySymbol field, the attribute1 field does not change.

Here is the simple code generated:

// Field Trigger Beginning 
println 'Field Trigger started: testUpdateTrigger, business object: fvBeTrxHdrs, field: treasurySymbol';

try {