My local installation of vanilla suddenly lost the navigation tabs. Even when I log in as admin, I don't see them. Can anyone give me a clue what might be wrong?
I activated Page Manager again and lost the tabs again, but was able to get to the Page Management page and resynced my tabs. Now everything appears to be working fine. However, that is a little scarry and would like to know what would cause the navigations tabs to become "out of sync". I am going to use Pages on my live forum and would like to know what to look out for to avoid this problem, if possible.
It might have been because the extension somehow tried to both read and write from the file at the same time. If that was indeed the case I added in a call to flock() to make sure it wont happen again (I don't know why I took it out in the first place...).