I made short test to see if it shows the variables but nothing is being displayed, so if I can’t even do that how is it possible to update.
[[UpdateProfile]]
<p><strong>[[%login.username?&namespace=`login` &topic=`updateprofile`]]:</strong> [[+login.username]]</p>
<p><strong>[[%login.lastname?&namespace=`login` &topic=`updateprofile`]]:</strong> [[+extended.lastname]]</p>
<p><strong>[[%login.firstname?&namespace=`login` &topic=`updateprofile`]]:</strong> [[+extended.firstname]]</p>
Solved I started from the example in the docs and could get it working
