No error but CFAST is not running.

[Giancarlo Rossi]

Hi,

I need to use an old file of 2019.

I change only header and fire postion and curve.

Version 7.7.2 give me "compartment number not found" but I cannot find error.

Version 7.4 and 7.4 give no error but I can advance in time only pressing "update"; the time step is in the order of 1/1000.

I need help.

Thank you.

[Giancarlo Rossi]

I have found some errors on the properties of targets and have eliminated them. 

Now Cfast starts but hangs at 330 s due to convergence error.
The pressure in all the rooms (56) is about - 29 Pa. 

The system has little ventilation ... but this was a hypothesis of the simulation !!!
Any suggestions .... besides increasing the cracks in the fire room?