hello

Could you provide screenshots or more explanation on your setup please (1 centreon central+poller, multiple pollers?) 

as far as I know “undetermined’ is an information you get on the dashboard, not in the monitoring view and it means the poller was not collecting data or historical data was not saved or the period you chose is outside the retention period 

is your setup new out of the box, or did you customize some option on the engine/poller/data retention ?

(I frankly have no idea where to look, but I would check there to start)