Can not export as vsdx via command line

[Centzilius]

Hi,
I tried to convert a draw.io image on the command line to a vsdx file but all I get is a pdf file. Is this just not a supported scenario or is this a bug?

cent@glados ~/Downloads % draw.io -x -f vsdx Untitled\ Diagram.xml 
Untitled Diagram.xml -> Untitled Diagram.xml.pdf
cent@glados ~/Downloads % draw.io -x -f vsdx Untitled\ Diagram.xml -o export.vsdx
Untitled Diagram.xml -> export.vsdx
cent@glados ~/Downloads % file export.vsdx
export.vsdx: PDF document, version 1.4

I am using:

cent@glados ~/Downloads % dpkg -l draw.io
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                          Version             Architecture        Description
+++-=============================-===================-===================-======
ii  draw.io                       10.9.5-210          amd64               
cent@glados ~/Downloads % cat /etc/os-release 
NAME="Ubuntu"
VERSION="18.04.2 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.2 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

[davidjgraph]

Not currently supported.

[m-mohamedin]

Will be available in next release