OK, thanks Leukipp for nice showing issue. I have fixed this, and it is available in our new Airlock version 1.7, and it will be available today on themeforest(if they won't LAG too much)
Sorry, but I can't reproduce this issue. Even from your description it looks like 'ghost bug'. If you provide link to your site, maybe there I will have more luck.
Comments
Windows 7 32-bit
with regards.
Settings in Home Page Design:
Portfolio items displayed: -1
Category: Featured
Reload the front page (a few times) untill the error appears.
If the Category is set to "all" instead of "featured", the front page appears correctly.
With regards.