Yup. I have a problem too between the 200L and my Blackburn Delphi 4.0. Two bikes, two lights, two comps, same problem. The older DiNotte Ultra 5 was just fine with the Delphi, so I know it's an issue with the 200L. And it seems worse when the DiNotte's batteries are lower.
I like the lights, so eventually I'll replace the Delphis.
Looks like the
Blackburn you have is wireless.
I do not have this problem with my Sigma BC1606, which is a wired computer. I have had the problem you describe with any LED source (Dinotte 200L or Fenix L2D PQ5) near my wireless computers (SI90, SI90HR) on my other bikes. Get a wired computer and you won't have this problem.