Dynamics NAV all Customized controls disappear from Navigation menu

Hello reader, I know you are tense for answers. Keep calm because you are about to sort the problem once for all.
Yesterday i was doing final checks on a client's database before golive. Then i discovered my team had forgotten to add company information in the setup.

I was in a rush, so i accidentally selected "BASIC" option in the USER EXPERIENCE fast tab of the COMPANY INFORMATION page. Then hell broke loose! All the customizations on the clients' database suddenly disappeared! The entire team was in shock and we had to reschedule the launch to the next day. Here is the way around it.

That field is by default blank. Everything works just fine. Once you change its content, all customizations will disappear mysteriously.
In case you change it by mistake. Run table 9178 "APPLICATION AREA SETUP" in development environment and delete the record there.
Everything should be back to normal.

I got to know this through Mark Brummel's blog. He explains so much more there. Click here for details.
Good luck