Here is what an IR Flash looks like on a trail cam. I use two cams on some of my feed pens that have two protein feeders or on a bowblind.
The first pic is from a camera on the far south end of the pen facing a corn feeder.
The next two pics are from the far north end of the pen facing the protein feeder. This camera had low batteries to the flash was not very bright.
This last pic is from a camera outside the feed pen on corn feeder.
The IR flash is appearing to be a bright shining light with the other camera. Is this similar what you are seeing?