This article applies to:
This bug has been fixed in E-Prime 1.1.
In E-Prime 1.0, objects incorrectly do not place responses that occur during the short time between the onset of an object until the input mask is armed into the device's history when flush input buffer = yes. Acesssing the history would not find these responses and would be considered lost.
Update to E-Prime 1.1 or later.