UNSOLVED Deleted appointments are still displayed...

[KamiSchami]

Hello, my calendar still shows appointments that I have already deleted from Google Calendar, synchronization is running. Anyone an idea? Thanks

[sdetweil]

@KamiSchami download and examine the ics file
from terminal window do

curl -sl calunder_url >somefile.ics

then edit with some text editor.

BEGIN :VEVENT start an entry