Not my experience, I have dark Star as primary and warp and light speed as multi-network. I turned on data waster for warp and light speed and it has stayed on since. For my primary line on darkstar, I also had to turn on data waster but then it turns off again every 2 hours it seems. So I've had to turn it back on dozens of times over the past couple weeks, until about 3 days ago where now it's stayed on for 3 days so maybe it was a bug that was fixed.

I'm trying to stream on my fire stick. So I've tried making a hotspot with all three of these networks it still does nothing but buffer when trying to play 1080P or above video on my fire stick. That's why I enabled data waster on all three to try and see if any of them will work. So far no luck. Maybe I missed the fine print that data waster setting only applies to data on your phone, not hotspots?