Could anyone tell me what I need to add in order to have my character appear on the mini map? The red is suppose to be the location of my character.
Does the character always show up in the center of the minimap? If so, just attach another draw texture (or shape) after your first draw texture to draw something on top of it at the center of the map (something like 118,90).
If the player doesn’t stay at the center of the minimap, you’ll need to do some calculations but there’s no point in going down that road unless is the case.
2d capture texture???
move the camera back, or wherever you want it. Looks like it’s set too close.
hope fixes ur problem 
ps: if you’re trying to reflect (refraction) using materials, then it won’t show like you think it would.
Oh, is that what that is? I had a tough time making it out in the screenshot.
yeah, pretty sure it’s the only way to do that right now, that I know of. (still noobish myself)(looks like I always will be, as I dig deeper into the rabbit hole, lol)
.unrealengine.com/latest/INT/Resources/ContentExamples/Reflections/1_7/index.html
method is more expensive on the engine than it looks under certain conditions, usually best to activate it with a trigger box or ?? etc. I tried it for a mirror on a vehicle and it made it look like I was time traveling when I started to move. nice effect but very undesirable. ( is sorta mess’d up atm in UE4, hope they make a cheaper way later, performance wise)
works to some degree but characters reflect oddly, usually with artifacts:
.unrealengine.com/latest/INT/Resources/ContentExamples/Reflections/index.html
and tha’s just sticking your head into the rabbit hole, not jumping in. 
ps: hope that all makes sense
One of the Epic dev’s just created a tutorial on the Wiki for creating a mini-map with UMG, you can find it here:
Hope that helps!