Hi I've been having occasional issues where 1 or 2 of my Radions seems to forget the programming. The last half hour of the day the lights should be all blue however sometimes I find only 1 or 2 of the lights are blue and the other(s) is full brightness, maybe not full but very bright and heavy on white. Once I didn't notice and the light stayed on all night. All I have to do is re-program and that corrects the issue but it shouldn't be happening at all. I had a Xr15pro for years with 0 problems. I upgraded to a bigger tank and added 2 more XR30 pro's, which I purchased used, and those seem to be the ones that give me problems. Could they have been damaged prior to my owning them? Is there anything specific that would cause this situation? I wouldn't go so far as to say it happens frequently but even once is too much in my opinion. Thanks for any help.