Lost Leadership Bug??

[Cako]

I haven't played the game for about one month.
Today a patch was installed and I noticed also a loss of leadership.
And all my upgraded item were reset and I cannot upgrade them anymore, cause the possiblity to upgrade is not shown.

[jake21]

In the past the devs have stated that saves are not always valid after an update; though I *think* steam has a way to revert to the previous version of the game if this is an issue for you.