Xpath woes

Hey all,

Been trying to figure out why this Xpath syntax is not working and I’m at a point where it seems like it’s an issue specific to LM… hoping someone knows of a fix/workaround.

Abridged XML response that I’m getting from a device we want to monitor:

<?xml version="1.0" ?>
<BACrest:GetValue xmlns:BACrest="urn:BACrestService">
    [...]
    <BACrest:return>75.034996</BACrest:return>
</BACrest:GetValue >

I’m trying to get the value inside BACrest:return.  Using the XML section of this article as reference.  Also using freeformatter.com as suggested here to validate my Xpath syntax.

I’ve tried a bunch of various syntax options that all work largely as expected in freeformatter but don’t work in LM: I get either NaN or 0.  I have verified that I’m getting the expected XML in the body of the response.

Various syntaxes I’ve tried:

BACrest:GetValue/BACrest:return
/BACrest:GetValue/BACrest:return
/BACrest:GetValue/BACrest:return/text()
number(/BACrest:GetValue/BACrest:return)
string(/BACrest:GetValue/BACrest:return)

...etc.

Then I thought maybe LM needs to have an integer (is that a thing?) so I tried this:

substring-before(/BACrest:GetValue/BACrest:return, '.')

...which returns just 75 in freeformatter.

Ideas?

Thanks!