Title: HW/SW Inventory: Fix crash when filtering for number of sites for Checkmk version Class: fix Compatible: compat Component: inv Date: 1710167848 Edition: cre Level: 1 Version: 2.1.0p41 When filtering the Checkmk versions -> #Sites inventory column, a crash occurs with C+: TypeError (expected string or bytes-like object) ... File "/omd/sites/oldstable/lib/python3/cmk/gui/query_filters.py", line 510, in <lambda> return lambda row: bool(regex.search(row.get(column, ""))) C-: This crash has been fixed.