m15 R3, WD19TB dock stopped working

Hi all - for context, I have an Alienware m15 R3 connected to a Dell WD19TB (mouse, keyboard and 2 monitors). Everything was working perfectly fine for a while. Randomly, the monitors seem to not get detected anymore but my external mouse + keyboard both still work through the WD19TB. I tried many of the tips out there such as power cycling the dock, reinstalling drivers, etc. but nothing seems to work. Has this happened to anyone before? And if so, does anyone have a solution. Appreciate any help!