Location Text broken in Popup

installed as beta1, updated to newest packages.

the calendar is CalDAV from Zimbra 8.

it is a repeated event. location "Technik" get's correctly displayed in the sidebar to the right but not in the popup. (see screenshot)

i started maya in the terminal and get this logs:

davidak@elementary-freya-4:~$ maya-calendar

(process:5195): Gtk-WARNING **: Locale not supported by C library.
 Using the fallback 'C' locale.

(maya-calendar:5195): Clutter-WARNING **: Locale not supported by C library.
Using the fallback 'C' locale.
[_LOG_LEVEL_INFO 16:24:53.830705] Application.vala:155: Calendar version: 0.3
[_LOG_LEVEL_INFO 16:24:53.830811] Application.vala:157: Kernel version: 3.13.0-43-generic
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
[_LOG_LEVEL_WARN 16:24:57.794143] RepeatPanel.vala:319: 3
[_LOG_LEVEL_WARN 16:25:03.316082] RepeatPanel.vala:319: 3
[_LOG_LEVEL_FATAL 16:26:01.908242] geocode_forward_add: assertion 'value == NULL || g_utf8_validate (value, -1, NULL)' failed
[_LOG_LEVEL_FATAL 16:26:01.908352] Calendar will not function properly.
[_LOG_LEVEL_WARN 16:26:01.914453] RepeatPanel.vala:319: 3
[_LOG_LEVEL_WARN 16:26:01.935941] [Pango] Invalid UTF-8 string passed to pango_layout_set_text()
[_LOG_LEVEL_WARN 16:26:04.673667] [Pango] Invalid UTF-8 string passed to pango_layout_set_text()

(apport-gtk:5279): Gtk-WARNING **: Locale not supported by C library.
 Using the fallback 'C' locale.
*** BUG ***
In pixman_region32_init_rect: Invalid rectangle passed
Set a breakpoint on '_pixman_log_error' to debug

*** BUG ***
In pixman_region32_init_rect: Invalid rectangle passed
Set a breakpoint on '_pixman_log_error' to debug

*** BUG ***
In pixman_region32_init_rect: Invalid rectangle passed
Set a breakpoint on '_pixman_log_error' to debug

*** BUG ***
In pixman_region32_init_rect: Invalid rectangle passed
Set a breakpoint on '_pixman_log_error' to debug

[6091:6091:0126/162802:ERROR:browser_main_loop.cc(209)] Gtk: Locale not supported by C library.
 Using the fallback 'C' locale.
[6091:6091:0126/162802:ERROR:browser_main_loop.cc(191)] GTK theme error: Unable to locate theme engine in module_path: "pixmap",
[6091:6091:0126/162802:ERROR:browser_main_loop.cc(191)] GTK theme error: Unable to locate theme engine in module_path: "pixmap",
[6091:6091:0126/162802:ERROR:browser_main_loop.cc(191)] GTK theme error: Unable to locate theme engine in module_path: "pixmap",
[6091:6091:0126/162802:ERROR:browser_main_loop.cc(191)] GTK theme error: Unable to locate theme engine in module_path: "pixmap",
[6091:6091:0126/162802:ERROR:browser_main_loop.cc(191)] GTK theme error: Unable to locate theme engine in module_path: "pixmap",
Gtk-Message: Failed to load module "canberra-gtk-module"
ATTENTION: default value of option force_s3tc_enable overridden by environment.
[6130:6130:0126/162802:ERROR:sandbox_linux.cc(305)] InitializeSandbox() called with multiple threads in process gpu-process
[6091:6124:0126/162818:ERROR:channel.cc(290)] RawChannel read error (connection broken)
[_LOG_LEVEL_FATAL 16:30:07.861862] geocode_forward_add: assertion 'value == NULL || g_utf8_validate (value, -1, NULL)' failed
[_LOG_LEVEL_FATAL 16:30:07.861974] Calendar will not function properly.
[_LOG_LEVEL_WARN 16:30:07.867520] RepeatPanel.vala:319: 3
[_LOG_LEVEL_WARN 16:30:07.884376] [Pango] Invalid UTF-8 string passed to pango_layout_set_text()

ProblemType: Bug
DistroRelease: elementary OS 0.3
Package: maya-calendar 0.3~r752+pkg66~ubuntu0.3.1 [origin: LP-PPA-elementary-os-daily]
ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
CrashDB: maya_calendar
CurrentDesktop: Pantheon
Date: Mon Jan 26 16:27:36 2015
ExecutablePath: /usr/bin/maya-calendar
GSettings:

InstallationDate: Installed on 2014-12-17 (40 days ago)
InstallationMedia: elementary OS 0.3 "Freya" - Daily amd64 (20140810)
SourcePackage: maya-calendar
UpgradeStatus: No upgrade log present (probably fresh install)