The example circuit called simple_amplifier works fine. But change the transistor to 2N3904 and it stops working. There will be lots of warnings like this:
Warning in ‘HB1’: Inserting 1 GOhm at HB node 26/36.
Warning in ‘HB1’: Inserting 1 GOhm at HB node 32/36.
Warning in ‘HB1’: Inserting 1 GOhm at HB node 32/36.
Warning in ‘HB1’: Inserting 1 GOhm at HB node 26/36.
To fix the problem open up the transistor model properties and change Xcjc to 1.0. Now the simulation works but the transistor model has been altered.
Is this a bug?