Thank you for letting us know, haus1! You've provided some great clues! The FTB has told us that they have received a few 568 returns with "a blank Form 568" in the middle. We cannot reproduce that yet but are still looking into why that occasionally happens.
Remove and discard the blank sides 4-6 and we'll keep trying to find a fact pattern that makes sides 4-6 print out blank then print out fine after that.
