Can't complete allied campaign mission-turning point
 

i think it is called turning point, i'm guessing since my mow version is on chinese, i've came across a problem when i finnished defending both the north side and east side of my position, they gave me a new objectiveL to destroy the last remnants of the german army as well as destroying the german mortars/arty. i wrecked both but still doesn't give me the next mission to go ahead,

any advice about what i'm supposed to do exactly will be of great help, thank you

Make sure your updated to 1.17.5.1. I finished it, but I've had a few problems and had to restart a few times.