Kix does NOT have a problem finding text with a hypen in it provided you properly delimit the search string!
Code:
Break On
$String = "'this-text','that-text','no hyphen text'"

$pos = InStr($String,'that-text')

$pos ?

get $
 
$StringArray = 'this-text','that-text','no hyphen text'

$pos = AScan($StringArray,'that-text')

$StringArray[$pos] ?
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Give a man a fish and he will be back for more. Slap him with a fish and he will go away forever.