Should I be worried about these cracks on the rear wall?

[noidea321]

L3 Homebuyers survey noted this;

"In addition to the above, we recommend commissioning a structural engineer to further investigate the following defects that may be of structural concern, and establish if the movement identified is progressive.

• Unusual settlement cracking was noted on the rear elevation (see photo below)."

I've attached the photos below.

 

[jj4091]

The second sentence answers your question