I have the following condition:

<action application="log" data="ERR UUID: ${uuid} = ${conference_name}"/>
<condition field="${cond(${uuid} == ${conference_name} ? YES : NO)}" expression="^YES$">

The log properly prints both variables:

mod_dptools.c:1879 UUID: 7d736b08-212b-4ac2-abb3-a5e738306fb5 = 7d736b08-212b-4ac2-abb3-a5e738306fb5

they're exactly the same, and still condition function fails:

Regex (FAIL) [conf_destination_recur_1] ${cond(${uuid} == ${conference_name} ? YES : NO)}(-ERR) =~ /^YES$/ break=on-false

I also tried a simple condition like

<condition field="${uuid}" expression="${conference_name}">

and still no match...