Thanks RoboBob and Asmussen, both the bugs are fixed.
I believe in a few weeks we’ll have a stable game to play. No more betas.
The only problem why I don't release the version 2.1 (With all the bug fixes since version 2.0) is because of the statistics. The older system had a bug counting the number of conquered rooms. In the new version, there is a new statistics system. The new secret system is cumulative. Now you can restore earlier levels to seek for secrets.
The problem: If someone installs the new version, the statistics will be restarted. (I don’t think it’s a big problem because of the “room conquered“ bug, the statistics won’t be real).
The good side: The new campaign has now 50 secrets. Plus, All the bugs fixed.
So, how important is are the statistics for everyone? If it’s really important, I suggest finishing the game with the old version (2.0). If you guys don’t bother with this problem, I can release the new version.