LD2410B still detected despite below threshold, move not working

I installed a ceiling-mounted (around 3.3m/11ft tall) LD2410B with ESPHome using ESP32-C3 Supermini.

With engineering mode on, I tuned the still energy threshold, the minimum threshold I had was 25% on gate G3 and G4. However the “Radar Still Target” seems to be behaving weirdly. Despite having none of the gates going above 25%, it’s randomly toggling between Detected and Clear.

Another issue I’ve faced is that the Radar Move Energy doesn’t seem to be working for me at all. On engineering mode, no of the gates seems to be reacting despite making huge movements and even running.

Video Gif

Any fans/curtain in the room?