I have to come back to my issues with recurring tasks. I applied a few fixes in backend/kopano/mapiprovider.php that were part of my problems, but there is still one thing I can’t fix myself. Of course, I’m willing to share my current thoughts and code modifications, but I’m far from a professional programmer. You might cry when you see what I did to fix broken things :-)
I can clearly proof that a recurring to-do breaks after it’s updated on the mobile device. As a result, I get this in z-push-error.log:
01/12/2018 14:25:17  [WARN] [someuser] /usr/share/z-push-2.4.5/backend/kopano/mapi/class.taskrecurrence.php:104 Undefined offset: -2138701566 (8) 01/12/2018 14:25:17  [WARN] [someuser] /usr/share/z-push-2.4.5/backend/kopano/mapi/class.taskrecurrence.php:105 Invalid argument supplied for foreach() (2)
My Kopano license is paid.
What support for recurring tasks can I expect when I open a support call and spend my support time for having a bug fixed? Are recurring tasks supported anyway?