After updating to 4.7.20, when the Event Info Page is accessed, it generates the following error, "API permission check failed for Event/get call; insufficient permission: require access CiviCRM and access CiviEvent and view event info". If I roll the system back to 4.7.18 it works. Any suggestions on a fix or work-around are much appreciated.
I ran in to this on an inherited site. It fixed itself once I removed the permission for "access CiviEvent" (which i assume had been erroneously given by previous developers)
Once removed the other permissions worked fine.
Maybe this counts as a bug. Will raise up a level.