Enabling Bloom in Splitscreen

Certain post processing effects, such as bloom, temporal AA, and motion blur are disabled when splitscreen is enabled due to visual artifacts. However, we would rather have bloom with visual artifacts than no bloom, as our game relies on splitscreen.

We’ve tried Doug Wilson’s solution in this thread, which requires editing ShowFlags.cpp. But after doing so, bloom has not been enabled. We made a similar post on the AnswerHub but unfortunately didn’t receive any help. Approaching deadlines are making this a more urgent issue.

Are there additional steps required after editing ShowFlags.cpp to get it to work in-engine? Or is this done differently in 4.13?