Regarding LM5023 60W power supply

I am using LM5023 IC for 60 AC/DC converter design. Now we are testing the board and facing an issue. IC comp pin voltage is not getting high even though output is lesser than the set voltage,which is happening in light  load condition . With no load condition the voltage is stable. I tried to fix the compensation circuit but no use. I need help to resole this issue.

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