The rule is meant to correct a phone number format, so if their format is supposed to be 000-000-0000 then I put 000.000.0000 in the test to make sure it gets corrected properly.
Yes it seems to be recent, like the last few months. No updates to FusionPro, but could have been updates to Creative Cloud/Acrobat.
Before when I selected that rule it would change the input from 000.000.0000 to 000-000-0000 as requested in the rule