When changing the ruleset, a download should automatically be started (if the system is online). That helps to validate if the download is working (i.e. oinkcode is correct) and also saves a click to do it manually.
Please state when and where this has been fixed!
Link to the Fix: https://git.ipfire.org/?p=people/stevee/ipfire-2.x.git;a=commit;h=5709768b0bab2b860911fcad66da8e0aec5c4eaa