HB analysis mismatch with TRAN- ADS

I could see oscillations at the output port of the oscillator(transient analysis), but HB analysis in ADS shows oscillator analysis did not converge. What does it mean?

In HB analysis, there is an option called as TAHB ( Transient Assisted Harmonic Balance). Use this option if your oscillator seems to be not working.
But there are some other options to make the oscillators converged in HB controller.Read a bit help of ADS.
Check the Loop Gain and Phase by using OscPort on an appropriate path to be sure that Closed Loop Gain>1 and Phase=0