GM:S Runner Doesn't Show When Starting

Followed "Getting Started" guide, but runner doesn't show when I test. Have to end it via Task Manager. Only thing I changed was obj_play to obj_control, which is a persistent object that handles game logic between screens (game initially loads into a menu). Here is the final few lines of the output when I try to test:

Room_Prepare()
Sound_Prepare()
InitGraphics()
Finished PrepareGame()
Run_Start
Compile finished: 1:51:47 PM

Any ideas?