Hi Art,
Does the task have any resources assigned? Do the resources have any posted actuals on this task?
If there are resources assigned, and the assignments have both 0 ETC's and 0 Actuals, you may be running into CLRT-78880, which is the issue described on TEC1292553.
The only workaround would be to remove all of the assignments from the task, if none of them have any Actuals.
CLRT-78880 has been resolved only on 14.4.
Regards,
Maria