I did share successfully 2 posts to a G+ community beginning of April 2015 and now I tried doing it again (to the same community) last week.
The post shows up in the community when using my account (and on my profile). However, it is not showing up when looking up the community page using another account.
I tried to ask on Google+ Help-community what might be wrong, but as it is a community no one will see my post - except me.
What might have happened?