Fyka HDCP means High-bandwidth Digital Content Protection. An HDCP error occurs when the device in your case the TV does not support current HDCP standards or there is a problem with the HDMI cable used. What is the model and age of your TV?
It's a monitor (electriQ 34" WQHD QLED 144Hz HDR Curved Monitor) not a TV, bought in 2021. It's been work fine up until the recent roku update.
Try unplugging the power from both the monitor and the Express for several minutes. You might also want to try a different USB power source for the Express.
