By default if you put "Once a day" under "on Tick" on top level, it would pass every day around 00:00, because at this time the EA enters in the new day. But if there is no some time filter around and there is tick data before 06:00, I would not expect this block to pass at 06:00. But if you still believe that there is no time filter anywhere, then there is some problem that must be investigated, because I don't know what is it.
If you think that there is a problem like this, what would help is to leave that EA like that (or make a shared copy and give me the link), so I can see what is going on. I prefer as simple as possible EAs that can show the problem easily 🙂