I have a 2019 3560RL and have also had a few shades replaced under warranty. I find that my shade issues fall into three issues: The bottom pull rail coming off, the shade won't stay down, or loss of spring pressure. The Irvine Shade Door Inc. has replacement springs and auto stops and have several good videos to explain how to adjust the shades, reattach the pull rail, and to replace the spring and auto stops. With these expensive shades, a $10 spring and about 10 minutes time can often cure your problem. Here is a link to their website:
http://www.irvineshadeanddoor.com/pr...roller-shades/