i had the same problem , did u try using widgets ? or is it placed in world? if its bound to the view of youre character you should consider making a widget
this is a direct comparison betwenn a moving camera and (left - textrender / right - widget)
and if you want the arrangement in the widget : the text is bind to a Textarray witch changes on a index i gave to it when i navigate with wasd ^^
sry if i misunderstood youre question !