This appeneds when there is a "special char" into channel name.
Specials tested char are:

$chr(1)
$chr(11)
$chr(12)
$chr(14)
$chr(16)
$chr(17)
$chr(18)
$chr(19)
$chr(20)
$chr(21)
$chr(23)
$chr(24)
$chr(25)
$chr(28)
$chr(29)
$chr(30)