Filament indicator on the flux inaccurate?!?


yesterday, i started a 2 hour print, flux studio said it would take 35g, according to my spool indicator thing i had about 75g left, so i started the print and woke up the next day(started this in the night after another print) to find out my whole spool was over! is the filament indicator REALLY inaccurate or is it just flux studio?