Mafia Wars Bangkok Chapter 2 Not Showing Solution

I know there are lots of bug on Bangkok.. specially when you found it already mastered on level 4 although you have not done any job yet! And now you can not do jobs on Chapter 2 or 3.. because they are not shown!
This is happen on episode 5A and episode 5B..

Well, I had this email from one friend who already solved this issue because he has similar problem too.. Please read on what his email to me.. Yeah

"I've got the same problem too, but I solved it!

If you are in chapter one, mastery level 4 and chapter two won't appear you have to do both jobs 100 times cuz you only get 1% progress on those jobs. Even if it appears that you have mastered them, you haven't!
When you have done that you will get passed on to chapter two. (Don't forget to "Get Help" on the third job)

Then it's the same thing on chapter two and three, it will appear as you have mastered the jobs but you haven't! Check out how many % progress you will get of each job on the job's tables.

I hope this will help you guys."

The tables are found here on Mafia Wars Wiki..
http://mafiawars.wikia.com/wiki/Oyabun
http://mafiawars.wikia.com/wiki/Dragon_Head

Just select on which episode are you now..

I think it make sense.. that you have to do the jobs on Chapter 1 first before you can go to the next chapter.. You still have one positive side, ie: you only do the job once (mastery level 4 only). So you're still lucky..
Also some players complaining that the price for buying the requirements on this episode is so expensive.. Well of course, because it's level 4 mastery!
Just do the other jobs until you have enough money to buy the requirements..

Have a try, guys..