I've been through this extensively. I had brand new everything. The problem was solved when I used a different brand innertube.
sooooo let me get this straight, having a puncture/failure in the same place on a number of innertubes isn't a problem with the rim/rim tape which by design, stays in the same place in relation to the tube... riiiiiiggggggghhhhttttttt ok
sooooo let me get this straight, having a puncture/failure in the same place on a number of innertubes isn't a problem with the rim/rim tape which by design, stays in the same place in relation to the tube... riiiiiiggggggghhhhttttttt ok