yes there is exactly that string on my WAN Network Graph dashlet on the old Dashboard:
'source': 'bandwidth', 'timerange': '0', 'title': 'WAN Monitor last 4 hours',
my newly recreated Dashboard has a different timerange value of 4 hours in seconds which is the setting of both graphs:
'source': 'bandwidth', 'timerange': 14400,
i checked my backup from before the update and it also had ‘timerange’: ‘0’
is 3/25 Migrate dashlets... supposed to upgrade this value?