Confirmed.
Please replace in mod_uddeim.php in line 429
$construct = uddeIM_utf8_substr($useutf8, $words[0], 0, $howlong);
with
$construct = uddeIM_utf8_substr($utf8, $words[0], 0, $howlong);
that should do the job.
uddeIM & uddePF Development
CB Language Workgroup
CB 3rd Party Developer