Why the find method cannot see the text on the page?

Just in support of what AlexKaras said regarding browsers.  Using sys.browser in some instances is the only option, but that is rare.  Generally it's better to use aliasing so you can use Aliases.Browser.Page, which helps figure out the browser itself by means of the way your tested app is configured.

If you find you must use the browser rather than the aliased object, consider using CurrentBrowser rather than Browser("*")

If you get ambigous browser detection your test will probably keep running, but the performance impact will be tremendous, because TC may be checking for the specified item in all open browsers before getting to the correct one.

If you aren't using crossbrowser, consider using Browser("iexplorer") or Browser("edge") etc.

That will return only one instance for TC to search for the page.  It might still be the wrong browser though if you have more than one browser process by that name running.  For that you will want to turn to the solution tristaanogre initially posted:  Always terminate all your browser proccesses before starting your test and make the first step of any test starting up a new browser.  Code as follows (jscript) - will need some extending/changing:

var counter = 0;
var browser = Sys.WaitBrowser("iexplore",1000); //or "edge", chrome etc.

while(browser.Exists && counter<60)
{
 counter++;
 browser.Terminate();
  browser = Sys.WaitBrowser("iexplore",1000);
}

This should ensure you always have only the one single instance of the browser you are working with