Hello Eitan,
Sorry for the long delay since i could not produce the error.
I got the attached output after running the tf view_frames.
Initially for some amount of time it runs well but suddenly looses connectivity and starts giving error as:
[ERROR] 1283572338.978389000: Connectivity Error: Could not find a common time /base_link and /map.
[ERROR] 1283572339.176282000: Connectivity Error: Could not find a common time /base_link and /map.
As seen in pdf avg. transfer rate is: /odom : 21 Hz , amcl : 5Hz and /base_laser_link to /base_link tf transform by broadcaster is /99.xx