[Evolution] Can't convert mail to meeting

[HXC <hxc planet nl>]

I would like to convert a mail message to a meeting. To achieve this I
right click on the message and select 'Convert to meeting' option. then
I select 'On This Computer' / 'Personal'. And then... nothing happens! I
can convert successfully a mail message to a task but converting to
meeting gives me problems. Who can help me with this?