OK I am now positive that some of my structs have gone corrupt and it crashed the editor because the actors referencing those structs were placed in the level. Opening the project opened the level, thus, leading to those unhandled exceptions. I changed the editor startup map in the DefaultEngine.ini file and the project loaded up. Funnily, the structs work splendidly fine when actually playing the game in editor. I am lost as to how they are corrupted or how to fix them