Here is a better example. Sim is about to enter a platform / raised area while holding the trash and then once after entering the raised area has immediately reset.
it happens to me too
the only solution I found is to wait for the sim to finish the action of depositing the garbage before asking him to do a next action; if I ask a sim to do something while he is taking out the garbage the sim leaves the garbage on the ground to do the next action.
It's annoying because the sims empty the garbage can autonomously and if you are playing with a large families and you lose sight a sim, you realize too late that he is taking out the garbage, you just give him orders and he leave it on the ground and you realize it later, when you find black piles around the house
