I have A spark with less then 5 hours of flying, The spark never crashed and never damaged.
Resently i see that my video became shaky, That also effect the long exposure pictures at night (1-2 secs).
I'll attach a video on youtube where you can see the footage, It seems that the gimbal shakes to the sides (left and right) every ~4 secs:
Please concentrate on the lamppost and see how it shaking. You can see the first shake on 0:04 before it actually take off
Also you can see how bad the long exposure picture:
Also, I use DJI GO 4 latest version, I calibrated compass and IMU sensors.