in my version the host information looks like this:
p = sre_parse.parse(p, flags) File “/omd/sites/itil/lib/python3.8/sre_parse.py”, line 948, in parse p = _parse_sub(source, state, flags & SRE_FLAG_VERBOSE, 0) File “/omd/sites/itil/lib/python3.8/sre_parse.py”, line 443, in _parse_sub itemsappend(_parse(source, state, verbose, nested + 1, File “/omd/sites/itil/lib/python3.8/sre_parse.py”, line 668, in _parse raise source.error(“nothing to repeat”, re.error: nothing to repeat at position 0 During handling of the above exception, another exception occurred: Traceback (most recent call last): File “/omd/sites/itil/lib/python3/cmk/gui/plugins/views/icons/init.py”, line 107, in _process_icon result = icon.render(what, row, tags, custom_vars) File “/omd/sites/itil/lib/python3/cmk/gui/plugins/views/icons/builtin.py”, line 983, in render if bi.is_part_of_aggregation(row[“host_name”], row.get(“service_description”)): File “/omd/sites/itil/lib/python3/cmk/gui/bi.py”, line 69, in is_part_of_aggregation return get_cached_bi_compiler().is_part_of_aggregation(host, service) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_compiler.py”, line 247, in is_part_of_aggregation self._check_redis_lookup_integrity() File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_compiler.py”, line 265, in _check_redis_lookup_integrity self.load_compiled_aggregations() File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_compiler.py”, line 77, in load_compiled_aggregations self._check_compilation_status() File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_compiler.py”, line 112, in _check_compilation_status self._compiled_aggregations[aggregation.id] = aggregation.compile(self.bi_searcher) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_aggregation.py”, line 82, in compile branches = self.node.compile({}, bi_searcher) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_node_generator.py”, line 54, in compile return sorted(self.action.execute_search_results(search_results, macros, bi_searcher)) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_lib.py”, line 495, in execute_search_results yield from self.execute(argument, bi_searcher) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_actions.py”, line 80, in execute return bi_rule_id_registry[self.rule_id].compile(argument, bi_searcher) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_rule.py”, line 120, in compile action_results.extend(bi_node.compile(mapped_rule_arguments, bi_searcher)) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_node_generator.py”, line 54, in compile return sorted(self.action.execute_search_results(search_results, macros, bi_searcher)) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_lib.py”, line 495, in execute_search_results yield from self.execute(argument, bi_searcher) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_actions.py”, line 80, in execute return bi_rule_id_registry[self.rule_id].compile(argument, bi_searcher) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_rule.py”, line 120, in compile action_results.extend(bi_node.compile(mapped_rule_arguments, bi_searcher)) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_node_generator.py”, line 54, in compile return sorted(self.action.execute_search_results(search_results, macros, bi_searcher)) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_lib.py”, line 495, in execute_search_results yield from self.execute(argument, bi_searcher) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_actions.py”, line 80, in execute return bi_rule_id_registry[self.rule_id].compile(argument, bi_searcher) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_rule.py”, line 120, in compile action_results.extend(bi_node.compile(mapped_rule_arguments, bi_searcher)) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_node_generator.py”, line 54, in compile return sorted(self.action.execute_search_results(search_results, macros, bi_searcher)) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_lib.py”, line 495, in execute_search_results yield from self.execute(argument, bi_searcher) File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_actions.py”, line 134, in execute host_matches, match_groups = bi_searcher.get_host_name_matches( File “/omd/sites/itil/lib/python3/cmk/utils/bi/bi_searcher.py”, line 96, in get_host_name_matches regex_pattern = regex(pattern_with_anchor) File “/omd/sites/itil/lib/python3/cmk/utils/regex.py”, line 49, in regex raise MKGeneralException((“Invalid regular expression ‘%s’: %s”) % (pattern, e)) cmk.utils.exceptions.MKGeneralException: \Invalid regular expression ‘*$’: nothing to repeat at position 0