ESC Failure Betaflight F3 Cicada 35a Need FPV Help04:11

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Hey community… I know, I could have edited in a video discussion of this request for help, but I’m kind of busy :).

Below my description and question are time stamps for all ESC failure, so you can scrub directly to that if you don’t need to see how the quad was being flown prior to issues.

Brief Description of Problem:

Intermittently while flying the quad behaves as if failsafing (from FPV view), but upon line of sight inspection quad loses power on Motor 4 (in BF), aka Front Left Motor (from FPV perspective), and then falls out of the sky. I changed the ESC for that motor, and the quad flew fine for half a pack. After a crash it began the failsafey/motor-dip again.

Question:

Is this an ESC problem, or an FC problem? Do I need to free up processor space (F3)? Or am I just getting unlucky with ESCs in crashes?
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Time Stamps:

1:01
1:07
1:12
1:23
1:33
1:51
1:57
2:13
2:19
2:26 – All footage going forward is New ESC
3:40
3:49
4:04

***************
Gear:

Taranis Q X7
M9 Hall Sensor Gimbals
Lotus Gimbal Stick Ends
FrSky x4r Receiver

Fatshark Dominator V3
Furious FPV True-D v3 Diversity Receiver
Immersion RC Spironet patch antenna
Far Vew Pagaoda antennas (one on quad, one on goggles)
TBS Unify Pro vtx
RunCam Swift 2 Rotor Riot Edition

Neato Talon X (naked, no skirt)
Betaflight BF F3 FC
SunnyDay Cicada 35a ESCs
DYS Fire 2206 2600kv motors
DAL Prop 5045c
Lumenier RGB LEDs
Tile Bluetooth-GPS Tracker (it’s crap, don’t get it)

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