It was same for me. It was “bad fuel”, “dirty fuel”, water, unscrew the fuel cap when it loses power and see if the cap isn’t venting. I checked the fuel tank also, washed it out, blew all the lines out up to the water superstore. Replaced the supply pump that’s pictured at the beginning of this thread. My injectors were replaced in December, 2020. This PSB that was posted came out within 3 weeks of me picking up my tractor after paying to have all injectors replaced. They never called me about it, even after I insisted it was faulty injectors. It now has 250 hours in the tractor, and they’ll failing again. Losing power, forget about using the PTO or a regen when it happens.