diary-float entry not synced

[gour]

Hello,

I'd like to schedule entries for my daughter English classes - all the weeks in July, Mon-Fri, 8:00-12:00 and have the following entry (just for Monday) in my org file:

** ljetni kamp
   <%%(diary-float 7 1 1)>

** Rijeka 
   <2016-06-24 Pet 07:30-22:00>

However, after invoking org-caldav-sync I get:

CalDAV Sync finished.

== Sync errors: 

None.

== Successful syncs: 

UID: ff11aa29-241f-4885-99f2-edd26d1d6fbe
   Status: deleted-in-org  Action: removed-from-cal
   Calendar: gour-calendar

UID: fe628acb-9b1a-455d-94a7-eb28d670e141
   Title: Rijeka
   Status: new-in-org  Action: org->cal
   Calendar: gour-calendar

and although the entry 'ljetni kamp' is generated in my Agenda it's not synced, although it gets UID, but only regular entry 'Rijeka' is properly synced.

Before that I was trying with:

<%%(org class ...)>

but it didn't work as well..

Another concern is that I'd like to get entry for the time-range when the class is scheduled and if I modify my entry like:

** ljetni kamp 08:00-12:00
   <%%(diary-float 7 1 1)>

then I get the following error:

Debugger entered--Lisp error: (error "Error while getting eventlist from https://mydomain.tld/remote.php/caldav/calendars/calid/gour-calendar/. Got status code: 400.")
  signal(error ("Error while getting eventlist from https://mydomain.tld.net/remote.php/caldav/calendars/calid/gour-calendar/. Got status code: 400."))
  error("Error while getting eventlist from %s. Got status code: %d." "https://mydomain.tld/remote.php/caldav/calendars/calid/gour-calendar/" 400)
  org-caldav-get-event-etag-list()
  org-caldav-update-eventdb-from-cal()
  org-caldav-sync-calendar((:calendar-id "gour-calendar" :files ("~/emacs/org/gour.org") :inbox "~/emacs/org/gour-calendar.org" :url "https://mydomain.tldremote.php/caldav/calendars/calid"))
  org-caldav-sync()
  call-interactively(org-caldav-sync record nil)
  command-execute(org-caldav-sync record)
  execute-extended-command(nil "org-caldav-sync")
  call-interactively(execute-extended-command nil nil)
  command-execute(execute-extended-command)

so I wonder if there is a way to sync diary-float-generated events as well as to get time range for the events' duration as well?

[RCIIIcm]

I have this same issue, though I don't get an error when I put a timestamp in the entry like your "ljetni kamp" example.

The README is a little confusing where it says "If they are inside an Org entry, there's a good chance they will be exported (see below) and have an ID property, so they can be found by org-caldav. We can sync the title, but syncing the timestamp with the s-expression is just infeasible, so this will generate a sync error." First of all, I don't get a sync error with my diary-float entry. And if the title is synced, but the timestamp isn't, I don't understand the consequences of that. How can an entry exist in a calendar without a timestamp?