Connected 32x64 RGB LED Matrix Panel (COM-14718) to Arduino (ESP8266) for successfully showing work status to family. After a few months bottom right quadrant stopped displaying red. Other colors are fine. Checked all connections and cannot find issue. Remaining portions of display working fine. Thoughts?
Sometimes things fail before their time 
https://www.youtube.com/watch?v=AaZ_RSt0KP8
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