ACF field groups with the same option position can be ordered by setting a key value. Key values starting with underscores are shown first. Field groups without keys are displayed inconsistently depending on the user role. #wordpress#protip#acf
Protip: It turns out logrotate configuration files that are just using the rotate option do not delete older log files, only the logfile that is rotated out. This distinction matters when the rotate option is reduced and older log files are left around.