Similar to but different than the 'Get Right' action error I wrote about a few days ago, the Conditional Warning action has its own strange bug that I just discovered.
When Value 1 is of type 'Action Result' and the Warning Message is also type 'Action Result', it works as expected. However, if Value 1 is of type 'Value from Screen' while the Warning message is type 'Action Result', the action will save properly and work properly. But, when it is opened again, the action result name in the entry box of the Warning Message is gone. Changing the Warning Message type to 'Type In' causes the 'lost' name to appear in the entry box. Durning these tests, Value 2 was always 'Type IN'. I have not explored the other possible combinations in this action.