The thing is that it "What you see in LR" is not the RAW unprocessed data! What you are seeing is the DEFAULT processed conversion. It is also very easy to change the LR default settings, and you can even set them up to be different for each body (by serial number so two identical cameras could still have different defaults) and on top of by serial number you can also specify by ISO value. So you could potentially have more than thirty different sets of default settings for each camera.It could be that you have a default for higher ISO values that has had the blue channel saturation turned right up by accident. Also check your colour profile, and associated colour settings, again it is easy to get that misset and saved as a default.
Also remember that those Angle hair light pipes, with xenon bulbs are very blue, and could easily be overexposed, and the WB will be way off from other most sources of artificial illumination. So it might not even be an actual processing problem.
Alan