They first ask you the general interview questions, and then ask you to compete a time-consuming research task for them outside of the interview. Once you send it back to them. They don’t give you and feedback or even bother to respond. So, don’t waste your time if they ask you to do the task. Just move on.
If they don't respect candidates time, imagine how they treat their employees.
Also said straight up that they will get rid of you within the month if you don't preform well.