Could the hanging come because of the high number of Photo/Info Requests???
Switched yesterdaymorning the Photo Request to off, but still the counter is at the moment on 770 req. to do, at abt. 1 am (utc) it was zero (yesterday morning counter on 1240)
Have now 145 planes in myflight.
CPU load is slightly higher as "normal" for RB.
You could switch off photo/info request for test.
edit: btw overhere no hanging of the pc (P4 3.2 gHz, 1024 MB RAM)