When viewing a Feature with a flag in it, this error appears:
warning: Missing argument 3 for rules_categories_features_export_render() in /shared/vash/sandboxes/garfield/balboa/site/www/sites/all/modules/rules/rules/rules.export.inc on line 96.
This is caused by a small change in the latest release of Features module that no longer uses the 3rd parameter. Rules was bitten by this as well: #814416: Missing argument 3 for rules_categories_features_export_render() in rules/rules/rules.export.inc on line 96..
Hopefully a simple fix. :-)