Resource will not level in P6 v.8.2

Hi,

I have a labour resource on an activity having a duration of 3 days and remaining units of 5, thus it is calculating the units/day to be 1.7.

I leveled it to have a max unit/day of 1 however it remains at 1.7. there is also another activity having the same resource at units/ day of 1 thus the total for some days for this resource is 2.7.

I don`t know what could be causing this despite levelling the resource and specifying a max unit/time of 1.

Regards,