I have a very strange issue with a packaged built in regards to Post Process Volume effect. In the packaged built, everything outside the player roughly in 5 meters radius is completely dark! It is impossible to see beyond that. It works fine in engine but in packaged built this occurs with Post Process Volume! I tried with all settings (low, mid, high, epic) on all graphics settings in the packaged built but the issue persists.
I just found out that the issue occurred due to Depth of Field when using Gaussian DoF. It resolved when switched to any other. I ended up using Bokeh DoF and it works fine with it. .