In our app using 19.0 we're having trouble with a silent hang (no error) at the first instance of a Reread. Pausing in the debugger points to a simple "Reread" command (no table arguments).

On two different computers, one hangs and the other doesn't. So we do not think a bug is in any program logic, but some subtle difference in the tables at each site, in which a rule of Reread is being violated. Having no error to work from, the cause is elusive.

Anyone ever had your app just freeze at the first reread, and if so what was the cause?