I am experiencing this bug also.
If I create a new calendar entry, it shows up twice in outlook and once in Lightning.
If I then delete the entry from Lightning, it disappears from Lightning and one entry disappears from Outlook.
If I then reload the calendar in Lightning, the entry reappears (now showing the duplicate which I could previously see in outlook)
If I delete the remaining entry from outlook, the entry disappears from Lightning or alternatively if I delete the entry from Lightning, the entry disappears from Outlook.
I reverted to v0.11 and then problem was not present.
I returned to v0.12 and now I cannot reproduce the problem at all... ??
I am experiencing this bug also.
If I create a new calendar entry, it shows up twice in outlook and once in Lightning.
If I then delete the entry from Lightning, it disappears from Lightning and one entry disappears from Outlook.
If I then reload the calendar in Lightning, the entry reappears (now showing the duplicate which I could previously see in outlook)
If I delete the remaining entry from outlook, the entry disappears from Lightning or alternatively if I delete the entry from Lightning, the entry disappears from Outlook.
I reverted to v0.11 and then problem was not present.
I returned to v0.12 and now I cannot reproduce the problem at all... ??
I'm using: 3.1.9-0. 39.b3pre. fc14 Lightning/1.0b2 Thunderbird/3.1.9
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.15) Gecko/20110307 Fedora/