Trigger issue when dealing with text

Hello,

I have an item which is of type TEXT, when I create and test a trigger in the expression constructor it doesn't behave as expected.

What I'm trying to do is alert when a text value doesn't change within a specific length of time.

My trigger looks as follows: {HOST.ITEM.last()}={HOST.ITEM.last(#96)}

I have also tried: {HOST.ITEM.last()}={HOST.ITEM.last(,86400)}

When I test the expression with identical numerical values the result is TRUE, when I test with identical text values, the result is unexpectedly FALSE.

i.e.

{HOST.ITEM.last()} = 1
{HOST.ITEM.last(#96)} = 1
Result: TRUE

However:
{HOST.ITEM.last()} = abc
{HOST.ITEM.last(#96)} = abc
Result: FALSE