October Build 230 When moving menu item (as sub), throws an error "A node cannot be moved to a descendant of itself." on line 923 of ~vendor\october\rain\src\Database\Traits\NestedTree.php

how can i fix it???

Working fine for me. Try deleting and recreating the descendant.

I got the same bug. Also with the form plugin.

Empty your table, delete all the entries, and recreate them.