I have some problems with the electronic image stabilazation of my Yi 4k. Whenever I turn the stabilizer on, the video starts do jitter (stutter, small jump, whatever you may call it). This happens more often to small movements, like shaking from holding the camera, but also when moving the camera slowly to pan or tilt. I have tried various resolution/iso/etc. combinations, and different firmware versions, but nothing solved the problem. Is it a known issue? Do I have a faulty camera? Is it a user-based problem? Thanks in forward!