Recently, I have been having issues with my front obstacle avoidance. Whenever, I take off, a warning pops up saying that the obstacle avoidance isn't functioning and it may fail during flight. In an attempt to fix this, I have recalibrated the sensors numerous time, refreshed the firmware on the drone, and downgraded to previous firmwares. I am currently on the newest aircraft firmware (01.04.0602), app firmware (4.1.18), remote firmware (01.04.01.00) and the problem persists. What should I do?

I would try the version of the DJI app that worked well before .. too many issues after last FW & app updates