Hi Steve,
Thanks for the speedy reply.
I did a little bit of testing at work today with the LED lights we have in the studio, which would be similar to the ones at the venue where I first noticed this issue. I tried filming them at different frame rates and shutter speeds. I noticed that regardless of the frame rate, if my shutter speed was set to 1/100 (as it was on the night) I got a similar effect of lines appearing where the light was most intense, and the same at 1/125 or anything above 1/200. However at 1/60 and 1/160 there didn’t seem to be an issue.