Question [Q] Encryption issues (4.4.4)

Running rooted slimkat 4.4.2, encrypted my phone (as per my company standards, to be able to configure business email), everything was working fine.2 accounts, personal and business, both setup good.

I downloaded 4.4.4 OS zip file, and flashed it after factory reset, alongwith 4.4.4 gapps.
after booting back on, kept getting errors, Youtube stopped, calendar stopped etc.
realized phone is still encrypted
removed my official account and kept only my personal gmail on the device.
still stays encrypted
contacted Admin, had him factory reset.
now boots fine, without encryption
setup my personal gmail
tried encrypting my phone, dsnt happen.
shows the green android logo without any progress bar.

Kindly help me encrypt this device so i can setup my office mail.