Anatomy scan question

Sh

I had my anatomy scan at week 20. The doctor said they cant see clearly coz of too much fat deposit. I thought that was strange. He has clearly written in my report that findings may not be correct due to low penetration of sound waves owing to belly fat. He tried vaginal, but the baby was too big at 20 weeks to come up, and they could not get some measurements due to this

Has this happened to anyone else?