This reminds me of this utility program we have for some proprietary interface at my work. It would only work from your home directory, and we were never sure why. It was on Solaris, and it didn't seem to be because of permissions, nor did it appear to actually log/write anything. We only had the binary, and weren't all that interested, but it baffled us because the error message given was a non sequitur.
And, of course, the company that "supports" didn't know anything about it anymore and didn't want to. As usual.
Anyway, "Know Thy Path!"