i think it works like this (not confirmed or anything).
first, u do dailys at day. when u look at daily list, what shows how many u have done, it shows time until dailys reset. for me, it says they reset 4:00, and after that is shows --:--, and still wont allow u to complete more dailys, if u had already done all 10.
but if u have done, for example, 5/10, u still can do 5 more during that time.
but dailys reset, when that timer runs out, so at last i, can do thous 5 dailys again during 1 hour it doesnt show any time at timer.
it might have to do something with timezone u are, or then it just bugs. i dont know. neither i have confirmed this

for me, it at last happens like that