the "All" cache doesn't include the filter cache, and if you are working with filters then that's the one you most likely want to clear.
You can clear the filter cache by truncating the cache_filtercache_filter
database table.
If you have drush at your disposal, you can run drush sqlq "truncate table cache_filter;"
to get the intended result.
(Please Please note, if you are using database prefixing you will need to add the prefix yourself, as the drush sql-querydrush sql-query
command executes the query exactly as provided.