Cheap Chinese Groupset FAILURE, after just 4 weeks

My Sensah Empire 2x11 groupset catastrophically failed after 800km, 500 miles, but why 11 speed groupsets are generally quite expensive. For example, at the time of filming, the full Shimano 105 R7000 groupset costs around 500 (630), and a full Ultegra R8000 will set you back around 700 (880). Im all about trying to drop weight from my bike and most lightweight drivetrain upgrades, such as lightweight chains and cassettes, are only compatible with 11 speed setups. However, I wanted to try out some cheaper alternatives before resorting to 105, Ultegra, or DuraAce. The full Sensah Empire 11 speed groupset can currently be found for less than 200 on AliExpress, and the shifting functions in a very similar way to the SRAM double tap system. I was really excited to try it out, so a few weeks ago I took the plunge and got it installed on my carbon fiber road bike (the video for that install and initial test can be found here: ). Straight out of the box, I was actually pretty