I can't see any reason why content control should stop working. Try doing some controlled testing to see if it's a problem with the rule file or some general issue. (Create a new rule file with a test rule, temporarily deactivate the other rule file, and see if the new rule triggers.)
I would suggest updating to v4.80 as well, even though it should make little difference for content control.
<p>I can't see any reason why content control should stop working. Try doing some controlled testing to see if it's a problem with the rule file or some general issue. (Create a new rule file with a test rule, temporarily deactivate the other rule file, and see if the new rule triggers.)</p><p>I would suggest updating to v4.80 as well, even though it should make little difference for content control.</p><p>&nbsp;</p>