This has been fixed with UCS 5.0-0 erratum138 https://forge.univention.org/bugzilla/show_bug.cgi?id=53466#c6 *** This bug has been marked as a duplicate of bug 53466 ***
UCS Version: 5.0-0 errata116 File"/usr/lib/python3/dist-packages/univention/management/console/modules/adtakeover/__init__.py", line 61, in _background result = func(self, request) File"/usr/lib/python3/dist-packages/univention/management/console/modules/adtakeover/__init__.py", line 110, in copy_domain_data takeover.join_to_domain_and_copy_domain_data(ip, username, password, self.progress) File"/usr/lib/python3/dist-packages/univention/management/console/modules/adtakeover/takeover.py", line 312, in join_to_domain_and_copy_domain_data takeover.rewrite_sambaSIDs_in_OpenLDAP() File"/usr/lib/python3/dist-packages/univention/management/console/modules/adtakeover/takeover.py", line 1338, in rewrite_sambaSIDs_in_OpenLDAP char_idx = address.find("@") AttributeError: 'int' object has no attribute 'find' Traceback (most recent call last):