Making my 1st Game. Day 38. SOLVED Why Dynamic Material Instance Did Not Work.
I pivoted to making the hundreds of blueprint actors for each card which is the method I did not want to use. After using print string, I found out that dynamic material instance did not work for me last time because the data table arrays were not cached at all and were completely empty. It turns out that you have to do all data configuration and setup in the Construction Script and not in the Event BeginPlay.