The tips drop weird. The RNG is a fickle beast with them.
I had an aha moment the other day when I logged in still wearing a costume and wanted to finish tips. No tips after an hour of doors. I then toggled my costume for the heck of it, next door, got a tip.
Tried it with another character to see if a tip would drop before toggling, sure enough, got one after a few doors. So, I think the RNG just screws with people.
On the Zombie badges, I find the boss badge is nearly always the last one to get. At least when doing the large portal parking lot league version.
What is interesting, while no progress on those, we do see the progress for the mobs that come from tricks. Inconsistent there. (Plus some of the winter event badges tease progress for the year)