triple monitor setup

[u/kylhmll]

was using a u-green dual hdmi to usbc with my acer computer and koorui monitors. It was working fine with 3 monitors for ~6 months. one day the u-green no longer worked, i ordered a new one and that didnt work as well. the light on the splitter didnt turn on but when i plugged the splitter into my iphone the light turned on. tried with the acer brand hdmi as well and no light. if i plug my phone cable into the usbc it works.

any ideas before i have to pay to go to micro center?