Result changes after running the simulation for a longer time

I am trying to simulate a simple full bridge rectifier. The simulation runs perfectly till a stop time of 0.4 secs and increasing the time than 0.4 sec results in a different waveform. How can i resolve this?

Vrms= 160V, C= 3e-06F, R= 40ohm

The results below are for a time of 0.5sec

Answer 1

[Sabin]

I cannot reproduce on my end. I suspect the problem is in the solver configuration, for example if using fixed-step simulation with a sample time that is not adequate (not small enough for the system dynamics) then the results may look like this. From the attached scope it does not seem that the system is working at all, and the sample time may be the culprit.