It's been a long time, nice to see that AoI is still available and that you are working on it.
I have a possible error to report. Some files will not open by double-clicking on the icon, instead a new, blank file opens. At first I was afraid the files were unreadable, but they open correctly from the 'open' menu in AoI.
So this is not serious, just inconvenient (and scary when you first encounter it).
I'm running the latest version (v3.0.3), on this system:
Running in Java 1.8.0111 (Oracle Corporation)
on Linux 3.13.0-107-generic (amd64)
Memory: 55MB used out of 191MB allocated (1333MB max)