I have a problem with the above on five of ca 55 calendars in Thunderbird, identical problem on two computers. The problem has existed for several months, always the same calendars on both computers and all the time. I am running Tb 52.9.1 on Centos 6 and on Centos 7.
The backend is owncloud 7.0.4 which I cannot upgrade, several phones and tablets running Android have no problems. Resetting the calendar cache does not make any difference, nor does unsubscribing from a calendar and adding it again, or toggling the off-line setting of the calendar. What should I do to find the cause of this? Because the Android calendars have always worked fine, I suspect the problem may be with the Sogo connector or with Tb. -- users@sogo.nu https://inverse.ca/sogo/lists
