I confirm the problem still exists with 1.3.

I have tried to upload pictures in all format, in scp, sshfs, USB to no avail. The transfered pictures just doen not show up in Gallery. Quite annoying.

And resetting tracker does not seem an normal solution to me.

In the hope that someone from Nokia fixes this, I voted here:
https://harmattan-bugs.nokia.com/show_bug.cgi?id=1121