Process running regardless of conditional event

[Ben_Rix]

I have a bot running on event change with adds or deletes. The event also has an optional condition:

IF(AND([_THISROW_BEFORE].[Session Reminder] <> [_THISROW_AFTER].[Session Reminder], [Start DateTime]>=NOW()), True, False)

From that I have a branch on condition process dependent on [Date]=TODAY() to run a send an SMS task.

Now, for some reason, the SMS are being sent regardless of the event change condition which should only trigger if a value change in [Session Reminder]

Does anyone see an error in my workflow here?

Regards
Ben