Complex sentence: While originally announced for release in January 2015, it was delayed due to a problem with the development environment with the Vita, which left the team stuck until Sony could update the system and provide them with suitable support.
Split into simpler sentences: While originally announced for release in January 2015, it was delayed due to technical issues. The specific reason for the delay was said to be a problem with the development environment with the Vita, which left the team stuck until Sony could update the system and provide them with suitable support.