Attachments may not be displayed

[末廣絵璃]

I use Google Calendar and Yandex Calendar with caldav.
If I create an event with an attachment in Google Calendar using something other than the CalenGoo app, when I open the event in CalenGoo, it may not show the attachment.
Similarly, if I create an event with an attachment in Yandex Calendar, it may or may not show up in CalenGoo.
And if the attachment is not shown in the event, if you edit it in CalenGoo or move or copy it to another calendar, the attachment will be deleted.

[CalenGoo Support]

Hi,

does Yandex maybe not save the attachment into the Google Calendar event but only somewhere else (e.g. in Yandex)? Can you see the attachment on http://calendar.google.com ?

Kind regards

Dominique Gunia