Drafting issue after U-turn

I have this problem where it doesnt seem like my avatar is drafting anymore. Before this i was able to hang on with the A’s but now i fall all the way back with the low B’s but i hold the same w/kg. I dont know why this is happening but it started after i clicked U-turn but it didnt work so i spammed it a bit and that same workout my avatar didnt go over 27kph even when i sprinted. And now im falling very far back, anyone know whats happening or did i just lose form in 2days?