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UCC28950: Resonant Inductor current does not track transformer primary current

Part Number: UCC28950

Tool/software:

Hi, 

I am working on a PFSB operating at 125 KHz frequency. 

The resonant inductor is 30uH, Lprimary is 15mH. 

The input voltage is 850V. 

I can observe that the resonant inductor current does not track transformer primary current. I can't think of a reason why there is a difference. 

The topology is phase shifted full bridge with clamping diodes on the primary and current doubler output on the secondary. The MOSFETs on the current doubler are with RC snubbers. 

Resonant Inductor Current

Transformer Primary Current

Thanks.