Several possible reasons have been revealed in regards to why "Minecraft PS4 Edition" ended up failing the certification test and possibly getting delayed because of it. According to a report from Tom's Guide on Aug. 22, Sony Computer Entertainment used the certification process in order to test whether or not a video game is stable and safe enough to run on the next-generation system. The console manufacturer usually let most software products slide if only minor bugs or glitches were found.
For "Minecraft PS4 Edition," however, Sony Computer Entertainment may have discovered a critical issue that must be addressed before the video game could be released to the masses. The development team at 4J Studios had to specifically make sure that the trophy system function correctly so that the awards will unlock at the right moment. Furthermore, Sony Computer Entertainment also mandate that all PS4 video games can use the remote play functionality of the Vita, which may add more glitches to the port.
The PS4 version ended up being the first of the three upcoming versions to be sent for certification. The other two, "Minecraft Vita Edition" and "Minecraft Xbox One Edition," are still being bug tested internally at 4J Studios. Mojang, the creator of the massively-popular title, previously announced that all three titles should be coming out by the end of this month. With "Minecraft PS4 Edition" failing the certification test and the other two ports not even being ready to be sent for certification, it appears that the company will have to push back the launch time frames.
The potential delay is disappointing fans who were looking forward to playing the next-generation console versions at full 1080p resolution with better draw distances and bigger worlds. A few players were also planning to take the full console version outside due to the portability of "Minecraft Vita Edition." You can find a screenshot from "Minecraft PS4 Edition" and "Minecraft Xbox One Edition" near the top of this article (via the official 4J Studios Twitter page).