I've had this problem as well. No chaff, target still locked and target still within the cone for gimbal tracking. But the gimbals suddenly loose lock and center themselves. I then have to use them like fixed weapons, until they start tracking again.That was not the case. The gimbals stay centered in my case.
This happens mainly when I fly my Python with gimballed multis. The problem is not so pronounced on my Vette or Cutter. Got bad enough that I just switched to fixed and turrets.
Also I though jitter does not break lock. But simply means that your rounds are thrown off your aim point a bit.
Have fun, fly safe. o7
P.S.: Always thought it was something wrong with my Potato so never posted a big report.
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