your post prompted me to take a look and there does appear to be an issue. Reading the reviews pointed me to the poetic website
http://www.yourpoetic.com/p/435/poetics-atmosphere-case-for-the-htc-one-m7
Where they say they are aware of the issue and should have a new 'fixed' batch, I have now emailed poetic as well to see if they can organise a replacement as mentioned on the site linked to above.
Thought I would share in case anyone else has a similar problem
http://www.yourpoetic.com/p/435/poetics-atmosphere-case-for-the-htc-one-m7
Where they say they are aware of the issue and should have a new 'fixed' batch, I have now emailed poetic as well to see if they can organise a replacement as mentioned on the site linked to above.
Thought I would share in case anyone else has a similar problem