Roku Ultra 4660X with 9.3.0 build 4170-46. The Roku Media Player recently updated to version 5.1 build 3. Previous version you could "set favorite dlna player" and it would automatically choose that device and pull up available content. In the current version the "set favorite dlna player" option is available, but does not work. There are at least 22 devices on my network advertising DLNA (Direct DVRs, Denon HEOS receivers, Windows Media Player, etc.) so scrolling through all the devices to get to the actual DLNA server (Serviio) takes a while. Additionally, the "Select Media Device" screen constantly resets and puts you back on the first device found. I am having this problem on two identical Roku Ultras. Any additional troubleshooting or screen captures are available on request.