Cannot change Slide Title

P.S.
I meanwhile attempted to work out the code and applied a “patch”, hence the snapshot shows a later line number.
I really don’t want to hack core files, but leave it to you who understands what they are doing.
I am pretty sure the issue is that when the form is submitted it’s seeing an array, not a string, and this caused the validate function to trip over.
if it helps at all, my work-patch is here:

function validate($data = null) {
		$this -> errors = array();

		if (!empty($data)) {
			$data = (empty($data[$this -> model])) ? $data : $data[$this -> model];
			foreach ($data as $dkey => $dval) {
	// addition: if a form is posted, $data is array[2]
				if ( is_array($dval) ) {
					foreach ($dval as $akey => $aval) {
						$akey = stripslashes($aval);
					}
					extract($dval, EXTR_SKIP);
				}else
	// end addition

				$this -> data -> {$dkey} = stripslashes($dval);
			}

@cpres Hi, thanks for that! Not 100% sure but I think same issue occurs in gallery.php as well as slide.php (function Validate() looks v similar!
Cheers