Why paid member still can't see protected content?

I've done:
1. User (test01) is an active paid member.
2. User has been granted "Sliver membership"
3. Silver Membership including [level-twittes].
4. /real-time-news/ has content like this:
[level-twittes]Here is the Twittes[/level-twittes]
[level-premium-content]Here is the sample of Premium content[/level-premium-content]

Situation:
Pages contain shortcodes been redirected to "/protected/" after login, even home page.

Please advice.