Volume stream by websocket is not complete

[kps7111]

Hi Team, I'm using smart api V2 and observing that volume data streamed in websocket is incomplete. Web socket is sending much more less volume compared to actually traded. This is not only for one stock but for all stocks. @admin Please take care and help fixing this issue. Volume is imp data and strategies are malfunctioning because of improper volume.
Attaching the screenshot showing the differences between historical volume vs actually streamed volume by web socket.