We will be bringing the servers offline at 3AM tonight for approximately 2 hours to fix the following issues:
  • Doors and locks will now respond as intended
  • Zombies will attack you in PvE
  • Bee box collision and interaction have been fixed
  • Vehicle turbo has been fixed
If you would like to try out the fixes for yourself, this build of the game is currently on the Test Server. Thank you for your reports and patience.

Source: Reddit