LR import (from Nikon P340) distorted some pictures

Question

Some pictures are getting seriously distorted although most look good as far as I can see.
No Develop Settings were applied during import.
There are two problems on a few pictures.
Pictures taken indoors at night without flash which has a slight yellow cast (as viewed in NX2) have an exaggerated yellow cast in LR.
The bigger issue is that LR has ADDED significant barrel distortion (if that's the right term, straight verticals become significantly curved). 
Any idea what I'm doing wrong?
This happens on the NRW files, not the JPG files.   They look fine (as in the same as far as I can tell as in NX2)
A related question ... I had saved NRW+JPG files on the camera but LR wont import the JPG; it only imports JPG where there is no NRW file.
(To see that the distortion was only on the NRW files I had to remove them, move the JPG files to a different folder on their own then import the JPGS).
How can I get it to import both?   (Usually there would be no need, and probably once Ive got everything mastered I may drop the JPG file, although it does help when flipping through folders in Windows Explorer, but I think that's a whole other question)

Answer 1

Found this in the PCMag review of P340
"One of the reasons that the edges of the wide-angle JPG output are so sharp is that the camera is cutting off a good portion of what's actually captured. If you shoot in Raw, you'll be greeted with an image that shows significant (13 percent) barrel distortion, basically a mild fisheye effect. The P340 corrects for this automatically when shooting in JPG mode. If you use Adobe Lightroom as your Raw converter you won't have to worry about the distortion, as there's a lens profile built in for the P340 that fixes it with one click. Alternatively you can manually dial in distortion correction and end up with an image with slight barrel distortion, but with a wider field than the automatically corrected version. The shopkeeper in the shot above wasn't visible on the rear LCD or JPG output when I framed the shot, but when I saw the Raw file on my computer screen I wanted to preserve his presence. Utilizing the lens profile correction in Lightroom also cut him out of the photo. Instead I dialed in a full 100 on the distortion correction slider, which corrected the geometry enough to suit my tastes and made for a stronger composition. It should be noted there's some blurriness in the corners when you use this technique, which is likely why Nikon crops them out of the image to begin with."
Not sure Id say "mild" fish eye, but then I'm not a fish
Still not clear why its bad on just a few images and (at first glance anyway) Ok in others.  More digging to do ....