My wife uses an iCloud calendar and often sends me invites to my (Google) calendar from her (iCloud) calendar. Even though I accept the invitation in my Google calendar (on a PC), the meeting doesn't show up in my calendar. I have to manually download the ICS file from the invitation and add it via the import/export route, which kinds of defeat the purpose of having a calendar invitation in the first place. It used to work fine before, so not sure what has changed. Can anybody help?